├── session ├── sess │ └── .keep ├── lock.php ├── error.php ├── write-close.php ├── start.php ├── read-close.php ├── custom.php ├── auth │ ├── logout.php │ ├── login.php │ ├── authentication.php │ └── auth-view.phtml ├── sess.php ├── handler.php ├── destroy.php ├── functions.php ├── protection.php ├── index.php ├── Education │ └── DbSessionHandler.php └── decode.php ├── .gitignore ├── template ├── footer.php ├── menu.php └── header.php ├── include ├── template │ ├── li.php │ └── list.php ├── append │ ├── footer.php │ ├── index.php │ ├── question.php │ ├── .htaccess │ └── header.php ├── math │ ├── decrement.php │ ├── echo.php │ ├── increment.php │ ├── pow.php │ ├── variable.php │ └── multiple.php ├── config │ └── db.php ├── echo.php ├── config.php ├── basedir.php ├── autoload.php ├── injection.php ├── mock │ └── myClass.php ├── spl-autoload.php ├── include-path.php ├── require.php ├── include.php └── index.php ├── phpinfo.php ├── error ├── e_parse_include.php ├── e_parse.php ├── e_strict.php ├── e_deprecated.php ├── backtrace.php ├── e_notice.php ├── e_warning.php ├── at.php ├── test-first.php ├── test-second.php ├── e_error.php ├── shutdown.php ├── handler.php ├── index.php ├── test.php └── test-at.php ├── favicon.png ├── buffer ├── .htaccess ├── template │ ├── footer.phtml │ ├── content.phtml │ └── header.phtml ├── clean.php ├── header.php ├── flush.php ├── deep.php ├── flush-fill.php ├── error.php ├── flush2.php ├── buffer.php ├── flush3.php ├── handler.php ├── template.php └── index.php ├── files ├── fopen.php ├── file-get-contents.php ├── index.php └── basedir.php ├── framework ├── index.php ├── controller-bluz.php ├── mvc.php ├── controller.php └── framework.php ├── exception ├── exception.php ├── Education │ ├── Exception │ │ ├── EducationException.php │ │ ├── CommandManagerException.php │ │ └── IllegalCommandException.php │ ├── Command │ │ ├── Ping.php │ │ ├── DefaultCommand.php │ │ └── AbstractCommand.php │ ├── Front.php │ ├── CommandManager.php │ └── RequestHelper.php ├── handler.php ├── tdd.php ├── front.php ├── finally.php ├── assert.php ├── index.php ├── php7.php ├── plain.php └── file.php ├── code-style ├── custom.php ├── none.php ├── psr-1.php ├── index.php ├── psr-12.php └── psr-4.php ├── rewrite.php ├── sockets ├── index.php ├── one.php ├── stream-http.php ├── web-sockets.php ├── many.php └── funcitons.php ├── .htaccess ├── routing.php ├── index.php ├── LICENSE ├── README.md ├── chat.php └── display.php /session/sess/.keep: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .idea 2 | -------------------------------------------------------------------------------- /template/footer.php: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /include/template/li.php: -------------------------------------------------------------------------------- 1 |
    • -------------------------------------------------------------------------------- /phpinfo.php: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /include/append/index.php: -------------------------------------------------------------------------------- 1 |

    Hello everybody!

    -------------------------------------------------------------------------------- /include/append/question.php: -------------------------------------------------------------------------------- 1 |

    Who are you?

    2 | -------------------------------------------------------------------------------- /include/math/decrement.php: -------------------------------------------------------------------------------- 1 | 'localhost', 5 | 'user' => 'root', 6 | 'pass' => '' 7 | ); 8 | -------------------------------------------------------------------------------- /include/template/list.php: -------------------------------------------------------------------------------- 1 |
      2 | 7 |
    -------------------------------------------------------------------------------- /buffer/template/footer.phtml: -------------------------------------------------------------------------------- 1 |
    2 | 5 |
    6 | 7 | -------------------------------------------------------------------------------- /error/e_strict.php: -------------------------------------------------------------------------------- 1 | TODO'; 11 | -------------------------------------------------------------------------------- /include/echo.php: -------------------------------------------------------------------------------- 1 |

    This is text from file echo.php

    2 |

    Try to find something else?

    3 |

    /include/injection.php?file=something

    4 | -------------------------------------------------------------------------------- /files/file-get-contents.php: -------------------------------------------------------------------------------- 1 | TODO'; 11 | -------------------------------------------------------------------------------- /include/config.php: -------------------------------------------------------------------------------- 1 | '; 9 | var_dump($dbConfig); 10 | echo ''; 11 | -------------------------------------------------------------------------------- /session/error.php: -------------------------------------------------------------------------------- 1 | 8 | 9 | MVC Framework 10 | -------------------------------------------------------------------------------- /session/write-close.php: -------------------------------------------------------------------------------- 1 | getMessage(); 11 | } 12 | -------------------------------------------------------------------------------- /session/start.php: -------------------------------------------------------------------------------- 1 | ✅ OK'; 9 | include 'echo.php'; 10 | 11 | echo '

    ⚠️ Warning

    '; 12 | include '../phpinfo.php'; 13 | -------------------------------------------------------------------------------- /buffer/template/content.phtml: -------------------------------------------------------------------------------- 1 |
    2 |
    3 |

    Header of text

    4 |

    5 |
    6 |
    7 |
    8 |

    9 | 10 |

    11 |
    12 | -------------------------------------------------------------------------------- /session/read-close.php: -------------------------------------------------------------------------------- 1 | true 9 | ] 10 | ); 11 | 12 | sleep(10); 13 | 14 | echo 'Read and close session, then sleep for 10 seconds'; 15 | -------------------------------------------------------------------------------- /buffer/clean.php: -------------------------------------------------------------------------------- 1 | '; 6 | debug_print_backtrace(); 7 | echo ''; 8 | } 9 | 10 | class ExampleClass 11 | { 12 | public static function method() 13 | { 14 | example(); 15 | } 16 | } 17 | 18 | ExampleClass::method(); 19 | -------------------------------------------------------------------------------- /error/e_notice.php: -------------------------------------------------------------------------------- 1 | '; 12 | ENDFOR; 13 | -------------------------------------------------------------------------------- /exception/Education/Exception/CommandManagerException.php: -------------------------------------------------------------------------------- 1 | Try to include file $file"; 11 | 12 | if (file_exists($file)) { 13 | include $file; 14 | } else { 15 | echo '

    File not found

    '; 16 | } 17 | -------------------------------------------------------------------------------- /include/mock/myClass.php: -------------------------------------------------------------------------------- 1 | logOut(); 12 | header('Location: /display/session/auth/login'); 13 | } 14 | -------------------------------------------------------------------------------- /code-style/none.php: -------------------------------------------------------------------------------- 1 | '; 15 | } 16 | -------------------------------------------------------------------------------- /include/append/header.php: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | Examples of code 8 | 9 | 10 | Home | Question 11 |
    -------------------------------------------------------------------------------- /include/spl-autoload.php: -------------------------------------------------------------------------------- 1 | Open browser console and find `PHP-VERSION` header'; 15 | 16 | echo 'Output buffer level: ' . ob_get_level() . "
    \n"; 17 | -------------------------------------------------------------------------------- /include/include-path.php: -------------------------------------------------------------------------------- 1 | '; 9 | var_dump(preg_split('/[' . PATH_SEPARATOR . ']/', get_include_path())); 10 | echo ''; 11 | 12 | // include_path ignored 13 | // file not found 14 | include './template/list.php'; 15 | -------------------------------------------------------------------------------- /exception/Education/Command/Ping.php: -------------------------------------------------------------------------------- 1 | getMessage(), "
    \n"; 7 | echo $exception->getFile(), ':', $exception->getLine(), "
    \n"; 8 | echo $exception->getTraceAsString(), "
    \n"; 9 | } 10 | ); 11 | 12 | throw new Exception('Try man!'); 13 | 14 | echo '

    OK

    '; 15 | -------------------------------------------------------------------------------- /buffer/flush.php: -------------------------------------------------------------------------------- 1 | Please waiting for 10 seconds...'; 12 | 13 | for ($i = 1; $i <= 10; $i++) { 14 | echo $i . "
    \n"; 15 | flush(); // send string to browser 16 | sleep(1); 17 | } 18 | 19 | echo '

    Thx!

    '; 20 | -------------------------------------------------------------------------------- /buffer/deep.php: -------------------------------------------------------------------------------- 1 | '; 19 | print_r(ob_get_status(true)); 20 | echo ''; 21 | -------------------------------------------------------------------------------- /buffer/flush-fill.php: -------------------------------------------------------------------------------- 1 | Please waiting for 10 seconds...'; 10 | 11 | for ($i = 1; $i <= 10; $i++) { 12 | echo str_pad($i, $buffer); // fill buffer with space symbols 13 | flush(); // send string to browser 14 | sleep(1); 15 | } 16 | 17 | echo '

    Thx!

    '; 18 | -------------------------------------------------------------------------------- /exception/Education/Command/DefaultCommand.php: -------------------------------------------------------------------------------- 1 | $message"; 10 | return true; 11 | } else { 12 | echo '

    At @ detected

    '; 13 | return true; 14 | } 15 | } 16 | 17 | set_error_handler('myHandler', E_ALL); 18 | 19 | UNKNOWN_CONSTANT; 20 | 21 | @UNKNOWN_CONSTANT; 22 | -------------------------------------------------------------------------------- /error/test-first.php: -------------------------------------------------------------------------------- 1 | ', microtime(true) - $time); 17 | echo number_format(memory_get_usage() - $memory, 0, '.', ' '), ' bytes
    '; 18 | -------------------------------------------------------------------------------- /code-style/psr-1.php: -------------------------------------------------------------------------------- 1 | '; 19 | } 20 | -------------------------------------------------------------------------------- /error/test-second.php: -------------------------------------------------------------------------------- 1 | ', microtime(true) - $time); 17 | echo number_format(memory_get_usage() - $memory, 0, '.', ' '), ' bytes
    '; 18 | -------------------------------------------------------------------------------- /files/index.php: -------------------------------------------------------------------------------- 1 | 8 | 9 | Filesystem 10 | -------------------------------------------------------------------------------- /framework/controller-bluz.php: -------------------------------------------------------------------------------- 1 | 2 | URI: /some-file/ 3 | URI: /some-file/?key=value 4 | URI: /some-file/key/value 5 | 6 |
    7 | URI: '; 9 | echo $_SERVER['REQUEST_URI']; 10 | echo ''; 11 | echo '

    GET:

    '; 12 | echo '
    ';
13 | var_dump($_GET);
14 | echo '
    '; 15 | ?> -------------------------------------------------------------------------------- /files/basedir.php: -------------------------------------------------------------------------------- 1 | ✅ Ok'; 7 | echo 'basedir: ' . ini_get('open_basedir') . '
    '; 8 | echo 'filesize: ../phpinfo.php - ' . filesize(__DIR__ . '/../phpinfo.php') . '
    '; 9 | 10 | ini_set('open_basedir', __DIR__); 11 | 12 | echo '

    ⚠️ Warning

    '; 13 | echo 'basedir: ' . ini_get('open_basedir') . '
    '; 14 | echo 'filesize: ../phpinfo.php - ' . filesize(__DIR__ . '/../phpinfo.php') . '
    '; 15 | -------------------------------------------------------------------------------- /session/auth/login.php: -------------------------------------------------------------------------------- 1 | auth($_POST['login'], $_POST['pass']); 17 | } 18 | 19 | require_once 'auth-view.phtml'; 20 | -------------------------------------------------------------------------------- /buffer/error.php: -------------------------------------------------------------------------------- 1 | Open browser console and try to find `TAG-A` and `TAG-B` headers'; 17 | 18 | echo 'Output buffer level: ' . ob_get_level() . "
    \n"; 19 | echo 'Output buffering value: ' . $buffer . "
    \n"; 20 | -------------------------------------------------------------------------------- /buffer/flush2.php: -------------------------------------------------------------------------------- 1 | Please waiting for 10 seconds...'; 14 | 15 | for ($i = 1; $i <= 10; $i++) { 16 | echo $i . "
    \n"; 17 | // no need to call flush() 18 | sleep(1); 19 | } 20 | 21 | echo '

    Thx!

    '; 22 | -------------------------------------------------------------------------------- /buffer/buffer.php: -------------------------------------------------------------------------------- 1 | Hello world!'; 17 | require dirname(__DIR__) . '/include/template/list.php'; 18 | session_start(); 19 | $content = ob_get_contents(); 20 | } 21 | ob_end_clean(); 22 | // end 23 | 24 | echo $content; 25 | -------------------------------------------------------------------------------- /exception/tdd.php: -------------------------------------------------------------------------------- 1 | $message"; 11 | highlight_string($code); 12 | } 13 | 14 | assert_options(ASSERT_WARNING, false); 15 | assert_options(ASSERT_CALLBACK, 'backlog'); 16 | 17 | assert('sqr(4) == 16', 'When I send integer, function should return square of it'); 18 | 19 | function sqr($a) 20 | { 21 | return; 22 | } 23 | -------------------------------------------------------------------------------- /buffer/flush3.php: -------------------------------------------------------------------------------- 1 | Please waiting for 10 seconds...'; 14 | 15 | ob_start(); 16 | 17 | for ($i = 1; $i <= 10; $i++) { 18 | echo $i . "
    \n"; 19 | ob_flush(); // send string to browser 20 | sleep(1); 21 | } 22 | 23 | echo '

    Thx!

    '; 24 | -------------------------------------------------------------------------------- /code-style/index.php: -------------------------------------------------------------------------------- 1 | 8 | Code style standards 9 | 23 | -------------------------------------------------------------------------------- /sockets/index.php: -------------------------------------------------------------------------------- 1 | 8 | 9 | Sockets and network 10 | -------------------------------------------------------------------------------- /.htaccess: -------------------------------------------------------------------------------- 1 | 2 | RewriteEngine On 3 | RewriteBase / 4 | 5 | # check size 6 | RewriteCond %{REQUEST_FILENAME} -s [OR] 7 | # check link 8 | RewriteCond %{REQUEST_FILENAME} -l [OR] 9 | # check directory 10 | RewriteCond %{REQUEST_FILENAME} -d 11 | 12 | # if something condition is true - return it as is 13 | RewriteRule ^.*$ - [NC,L] 14 | 15 | # if it's started with /display/ 16 | RewriteRule ^display\/(.*)$ display.php?file=$1 [NC,L] 17 | 18 | # else route to one file 19 | RewriteRule ^.*$ display.php?file=rewrite [NC,L] 20 | -------------------------------------------------------------------------------- /exception/Education/Command/AbstractCommand.php: -------------------------------------------------------------------------------- 1 | execute(); 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /exception/front.php: -------------------------------------------------------------------------------- 1 | connect_error) { 17 | die( 18 | 'Connect Error (' . $mysqli->connect_errno . ') ' 19 | . $mysqli->connect_error 20 | ); 21 | } 22 | 23 | 24 | $handler = new Education\DbSessionHandler(); 25 | session_set_save_handler($handler, true); 26 | session_start(); 27 | -------------------------------------------------------------------------------- /include/require.php: -------------------------------------------------------------------------------- 1 | getMessage(); 20 | echo '
    '; 21 | echo $e->getPrevious()->getMessage(); 22 | } 23 | -------------------------------------------------------------------------------- /framework/mvc.php: -------------------------------------------------------------------------------- 1 | getAttributes(); 14 | $result = []; 15 | foreach ($attributes as $attribute) 16 | { 17 | $result[] = $attribute->newInstance(); 18 | } 19 | return $result; 20 | } 21 | 22 | echo '
    ';
23 | var_dump(getAttributes($reflection));
24 | 
25 | 


--------------------------------------------------------------------------------
/include/include.php:
--------------------------------------------------------------------------------
 1 | notExists();
31 | */
32 | 
33 | // undefined function
34 | the_roof_is_on_fire();
35 | 
36 | // failed opening required
37 | /*
38 | require_once 'not-exists.php';
39 | */
40 | 


--------------------------------------------------------------------------------
/buffer/handler.php:
--------------------------------------------------------------------------------
 1 | \n" .
15 |         "Is it start phase: " . (($phase & PHP_OUTPUT_HANDLER_START) ? "true" : "false") . "
    \n" .
16 |         "Is it final phase: " . (($phase & PHP_OUTPUT_HANDLER_FINAL) ? "true" : "false") . "
    \n" .
17 |         "Length of string '$buffer' is " . strlen($buffer);
18 | }
19 | 
20 | ob_start('ob_handler');
21 | echo 'hello world';
22 | ob_get_flush();
23 | 


--------------------------------------------------------------------------------
/buffer/template/header.phtml:
--------------------------------------------------------------------------------
 1 | 
 2 | 
 3 | 
 4 |     
 5 |     
 6 |     
 7 |     <?= $title ?>
 8 |     
 9 |     
11 |     
12 |     
13 | 
14 | 
15 | 


--------------------------------------------------------------------------------
/routing.php:
--------------------------------------------------------------------------------
 1 | .*)/', $_SERVER['REQUEST_URI'], $match)) {
 9 |     if (file_exists(__DIR__ . '/' . $match['display'] . '.php')) {
10 |         set_include_path(get_include_path() . PATH_SEPARATOR . __DIR__);
11 |         $_GET['file'] = $match['display'];
12 |         include_once 'display.php';
13 |     } else {
14 |         return false;
15 |     }
16 | } elseif (file_exists(__DIR__ . $_SERVER['SCRIPT_NAME'])) {
17 |     return false; // serve the requested resource as-is.
18 | } else {
19 |     include_once 'index.php';
20 | }
21 | 


--------------------------------------------------------------------------------
/framework/controller.php:
--------------------------------------------------------------------------------
 1 |  $total,
33 |         'comment' => $comment
34 |     ];
35 | };
36 | 


--------------------------------------------------------------------------------
/exception/Education/Front.php:
--------------------------------------------------------------------------------
 1 |  null));
21 |             $helper->runCommand();
22 |         } catch (\Exception $e) {
23 |             echo "
    " . get_class($e) . "
    \n";
24 |             echo "
    " . $e->getMessage() . ", code " . $e->getCode() . "
    \n\n";
25 |             echo "file: " . $e->getFile() . "
    \n";
26 |             echo "line: " . $e->getLine() . "
    \n";
27 |             echo '
    ';
28 |             echo $e->getTraceAsString();
29 |             echo '
    ';
30 |             die;
31 |         }
32 |     }
33 | }
34 | 


--------------------------------------------------------------------------------
/session/destroy.php:
--------------------------------------------------------------------------------
 1 |  $b) {
26 |             $foo->bar($arg1);
27 |         } else {
28 |             BazClass::bar($arg2, $arg3);
29 |         }
30 |     }
31 | 
32 |     final public static function bar()
33 |     {
34 |         // method body
35 |     }
36 | }
37 | 


--------------------------------------------------------------------------------
/error/shutdown.php:
--------------------------------------------------------------------------------
 1 | ';
20 |         echo '
    Sorry, we found error in your code
    ';
21 |         echo "
    ";
22 |         var_dump($error);
23 |         echo "
    ";
24 |         echo "";
25 |         include dirname(__DIR__) . '/template/footer.php';
26 |     }
27 | }
28 | 
29 | register_shutdown_function('shutdown');
30 | 
31 | require_once 'e_parse.php';
32 | 


--------------------------------------------------------------------------------
/error/handler.php:
--------------------------------------------------------------------------------
 1 | $type: $message";
19 |     echo "
    File: $file:$line
    ";
20 |     echo "
    Context: $" . implode(', $', array_keys($context)) . "
    ";
21 |     return true;
22 | }
23 | 
24 | set_error_handler('myHandler', E_ALL);
25 | 
26 | // generate E_NOTICE error
27 | echo $a;
28 | 
29 | // generate E_WARNING error
30 | implode('string', 'string');
31 | 
32 | // generate E_USER_DEPRECATED
33 | trigger_error('Deprecated error', E_USER_DEPRECATED);
34 | 


--------------------------------------------------------------------------------
/buffer/template.php:
--------------------------------------------------------------------------------
 1 |  'Hello World!']);
 8 |     $content = template('content', ['content' => 'Lorem ipsum...', 'meta' => 'Author info']);
 9 |     $footer = template('footer', ['copy' => 'Copyright ' . date('Y')]);
10 |     // ...some skipped logic
11 | } catch (InvalidArgumentException $e) {
12 |     // ...display errors
13 | }
14 | 
15 | echo $header, $content, $footer;
16 | 
17 | /**
18 |  * @param string $template
19 |  * @param array $vars
20 |  * @return string
21 |  * @throws InvalidArgumentException
22 |  */
23 | function template($template, $vars)
24 | {
25 |     ob_start();
26 |     if (in_array('template', $vars, true)) {
27 |         throw new InvalidArgumentException('Variable name `template` is reserved');
28 |     }
29 |     extract($vars);
30 |     include "template/$template.phtml";
31 |     return ob_get_clean();
32 | }
33 | 


--------------------------------------------------------------------------------
/template/menu.php:
--------------------------------------------------------------------------------
 1 | 
  • 
 2 |     PHP Info
 3 | 
    • 
 4 | 
  • 
 5 |     
 7 | 
    • 
 8 | 
  • 
 9 |     
11 | 
    • 
12 | 
  • 
13 |     
15 | 
    • 
16 | 
  • 
17 |     
19 | 
    • 
20 | 
  • 
21 |     
23 | 
    • 
24 | 
  • 
25 |     
27 | 
    • 
28 | 
  • 
29 |     
31 | 
    • 
32 | 
  • 
33 |     
35 | 
    • 
36 | 
  • 
37 |     
39 | 
    • 
40 | 
  • 
41 |     Rewrite Apache Module
42 | 
    • 


--------------------------------------------------------------------------------
/exception/assert.php:
--------------------------------------------------------------------------------
 1 | $message";
13 | }
14 | 
15 | assert_options(ASSERT_WARNING, false);
16 | assert_options(ASSERT_CALLBACK, 'backlog');
17 | 
18 | /**
19 |  * Settings format
20 |  *
21 |  *     [
22 |  *         'host' => 'localhost',
23 |  *         'port' => 3306,
24 |  *         'name' => 'dbname',
25 |  *         'user' => 'root',
26 |  *         'pass' => ''
27 |  *     ]
28 |  *
29 |  * @param $settings
30 |  */
31 | function setupDb($settings)
32 | {
33 |     assert(isset($settings['host']), 'Db `host` is required');
34 |     assert(isset($settings['port']) && is_int($settings['port']), 'Db `port` is required, should be integer');
35 |     assert(isset($settings['name']), 'Db `name` is required, should be integer');
36 |     // connection code here
37 | }
38 | 
39 | setupDb(['host' => 'localhost']);
40 | 


--------------------------------------------------------------------------------
/exception/index.php:
--------------------------------------------------------------------------------
 1 | 
 8 | 
 9 | Error handling with Exceptions
10 | 


--------------------------------------------------------------------------------
/error/index.php:
--------------------------------------------------------------------------------
 1 | 
 8 | 
 9 | Error handling
10 | 


--------------------------------------------------------------------------------
/buffer/index.php:
--------------------------------------------------------------------------------
 1 | 
 8 | 
 9 | Output Buffer
10 | 


--------------------------------------------------------------------------------
/index.php:
--------------------------------------------------------------------------------
 1 | 
 3 | 
 4 | 
    
 5 |     
    
 6 |         
    PHP Education Program
    
 7 |         
    Live examples for courses
    
 8 |         
    
 9 |             
10 |                 
11 |                 GitHub
12 |             
13 |             Learn
14 |                 more
15 |         
    
16 |     
    
17 | 
    
18 | 
    
19 |     
23 | 
    
24 | 
    
25 |     
29 | 
    
30 | 
31 | 
33 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | The MIT License (MIT)
 2 | 
 3 | Copyright (c) 2016 Anton Shevchuk
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy of
 6 | this software and associated documentation files (the "Software"), to deal in
 7 | the Software without restriction, including without limitation the rights to
 8 | use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 9 | the Software, and to permit persons to whom the Software is furnished to do so,
10 | subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
17 | FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
18 | COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
19 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 | 


--------------------------------------------------------------------------------
/exception/php7.php:
--------------------------------------------------------------------------------
 1 | Parse Error';
11 |     echo '
    ';
12 |     var_dump($e);
13 |     echo '
    ';
14 | }
15 | 
16 | try {
17 |     (function (int $one, int $two) {
18 |         return;
19 |     })(
20 |         'one',
21 |         'two'
22 |     );
23 | } catch (TypeError $e) {
24 |     echo '
    Type Error
    ';
25 |     echo '
    ';
26 |     var_dump($e);
27 |     echo '
    ';
28 | }
29 | 
30 | try {
31 |     1 << -1;
32 | } catch (ArithmeticError $e) {
33 |     echo '
    Arithmetic Error
    ';
34 |     echo '
    ';
35 |     var_dump($e);
36 |     echo '
    ';
37 | }
38 | 
39 | try {
40 |     1 % 0;
41 | } catch (DivisionByZeroError $e) {
42 |     echo '
    Division By Zero Error
    ';
43 |     echo '
    ';
44 |     var_dump($e);
45 |     echo '
    ';
46 | }
47 | 
48 | ini_set('zend.assertions', 1);
49 | ini_set('assert.exception', 1);
50 | 
51 | try {
52 |     assert(1 === 0);
53 | } catch (AssertionError $e) {
54 |     echo '
    Assertion Error
    ';
55 |     echo '
    ';
56 |     var_dump($e);
57 |     echo '
    ';
58 | }
59 | 


--------------------------------------------------------------------------------
/exception/plain.php:
--------------------------------------------------------------------------------
 1 | runCommand();
23 | } catch (\Exception $e) {
24 |     echo get_class($e) . '
    ';
25 |     echo $e->getMessage() . '
    ';
26 |     if ($e = $e->getPrevious()) {
27 |         echo '
    ';
28 |         echo get_class($e) . '
    ';
29 |         echo $e->getMessage() . '
    ';
30 |     }
31 |     echo 'Try "ping" command: /exception/plain.php?cmd=ping';
32 |     exit();
33 | }
34 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | PHP Education Program
 2 | =====================
 3 | 
 4 | Учебные материал для курса обучения в компании [NIX Solutions Ltd](http://www.nixsolutions.com). Более подробная
 5 | информация о наших курсах доступна на странице https://www.nixsolutions.com/ru/study-center/courses/
 6 | 
 7 | ## Статьи
 8 | 
 9 | * [Сессия](http://anton.shevchuk.name/php/php-for-beginners-session/)
10 |     * [PHP Session Locking: How To Prevent Sessions Blocking in PHP requests](https://ma.ttias.be/php-session-locking-prevent-sessions-blocking-in-requests/)
11 | * [Подключение файлов](http://anton.shevchuk.name/php/php-for-beginners-include-files/)
12 | * [Буфер вывода](http://anton.shevchuk.name/php/php-for-beginners-output-buffer/)
13 | * [Обработка ошибок](http://anton.shevchuk.name/php/php-for-beginners-error-handling/)
14 |     * Исключительный код: [часть 1](http://anton.shevchuk.name/php/exceptional-code-part-1/)
15 |       и [часть 2](http://anton.shevchuk.name/php/exceptional-code-part-2/)
16 | 
17 | ## PHP web-server
18 | 
19 | Для запуска примеров с использованием встроенного web-сервера следует указать скрипт для роутинга:
20 | 
21 | ```bash
22 | php -S localhost:8080 -t php-education php-education/routing.php
23 | ```
24 | 


--------------------------------------------------------------------------------
/framework/framework.php:
--------------------------------------------------------------------------------
 1 |  true]);
17 |     } else {
18 |         $GLOBALS['_SESS'] = [];
19 |     }
20 | }
21 | 
22 | /**
23 |  * Equal to session_id()
24 |  *
25 |  * @param string $id
26 |  * @return string
27 |  * @see session_id
28 |  */
29 | function sess_id($id = null)
30 | {
31 |     static $sess_id;
32 | 
33 |     if ($id) {
34 |         $sess_id = $id;
35 |         setcookie('PHPSESS', $sess_id, null, null, null, null, true);
36 |     }
37 | 
38 |     if ($sess_id) {
39 |         return $sess_id;
40 |     }
41 | 
42 |     if (isset($_COOKIE['PHPSESS'])) {
43 |         $sess_id = $_COOKIE['PHPSESS'];
44 |     }
45 |     return $sess_id;
46 | }
47 | 
48 | /**
49 |  * Shutdown function
50 |  */
51 | function sess_shutdown()
52 | {
53 |     if ($id = sess_id()) {
54 |         $file = $GLOBALS['_SESS_DIR'] . $id . '.sess';
55 |         file_put_contents($file, serialize($GLOBALS['_SESS']));
56 |     }
57 | }
58 | 


--------------------------------------------------------------------------------
/template/header.php:
--------------------------------------------------------------------------------
 1 | 
 2 | 
 3 | 
 4 |     
 5 |     
 6 |     
 7 |     Examples of code
 8 |     
 9 |     
11 |     
12 |     
14 |     
15 |     
16 |     
17 |     
18 |     
21 | 
22 | 
23 | 


--------------------------------------------------------------------------------
/session/protection.php:
--------------------------------------------------------------------------------
 1 | 
 8 | 
 9 | Include PHP files
10 | 


--------------------------------------------------------------------------------
/session/auth/authentication.php:
--------------------------------------------------------------------------------
 1 | login && $pass === $this->pass) {
27 |             if (session_status() === PHP_SESSION_NONE) {
28 |                 session_start();
29 |             }
30 |             $_SESSION['is_auth'] = true;
31 |             $_SESSION['login'] = $login;
32 |             return true;
33 |         } else {
34 |             $_SESSION['is_auth'] = false;
35 |             $this->error = true;
36 |             return false;
37 |         }
38 |     }
39 | 
40 |     /**
41 |      * @return string|bool
42 |      */
43 |     public function getLogin()
44 |     {
45 |         if ($this->isAuth()) {
46 |             return $_SESSION['login'];
47 |         }
48 |         return false;
49 |     }
50 | 
51 |     /**
52 |      * @return void
53 |      */
54 |     public function logOut()
55 |     {
56 |         $_SESSION[] = [];
57 |         session_destroy();
58 |     }
59 | }
60 | 


--------------------------------------------------------------------------------
/error/test.php:
--------------------------------------------------------------------------------
 1 | first run';
23 | echo '
    ';
24 | printf('%f seconds 
    ', $firstTime);
25 | echo number_format($firstMemory, 0, '.', ' '), ' bytes
    ';
26 | echo '
    ';
27 | 
28 | #
29 | # Second
30 | #
31 | $memStart = memory_get_usage();
32 | $timeStart = microtime(true);
33 | 
34 | $agg = [];
35 | for ($j = 0; $j < 10000; $j++) {
36 |     $agg[$b] = $j;
37 | }
38 | 
39 | $memEnd = memory_get_usage();
40 | $timeEnd = microtime(true);
41 | 
42 | $secondTime = $timeEnd - $timeStart;
43 | $secondMemory = $memEnd - $memStart;
44 | 
45 | echo '
    second run
    ';
46 | echo '
    ';
47 | printf('%f seconds 
    ', $secondTime);
48 | echo number_format($secondMemory, 0, '.', ' '), ' bytes
    ';
49 | echo '
    ';
50 | 
51 | #
52 | # Diff
53 | #
54 | echo '
    diff
    ';
55 | echo '
    ';
56 | printf('%f seconds 
    ', $secondTime - $firstTime);
57 | echo number_format($secondMemory - $firstMemory, 0, '.', ' '), ' bytes
    ';
58 | echo '
    ';
59 | printf('%d times slower 
    ', $secondTime / $firstTime);
60 | 


--------------------------------------------------------------------------------
/exception/file.php:
--------------------------------------------------------------------------------
 1 | getMessage();
42 | } catch (FileException $e) {
43 |     echo 'File Error: ' . $e->getMessage();
44 | } catch (FileSystemException $e) {
45 |     echo 'Filesystem Error ' . $e->getMessage();
46 | } catch (Exception $e) {
47 |     echo 'Server Error: ' . $e->getMessage();
48 | }
49 | 


--------------------------------------------------------------------------------
/error/test-at.php:
--------------------------------------------------------------------------------
 1 | first run';
26 | echo '
    ';
27 | printf('%f seconds 
    ', $firstTime);
28 | echo number_format($firstMemory, 0, '.', ' '), ' bytes
    ';
29 | echo '
    ';
30 | 
31 | #
32 | # Second
33 | #
34 | $memStart = memory_get_usage();
35 | $timeStart = microtime(true);
36 | 
37 | $agg = [];
38 | for ($j = 0; $j < 10000; $j++) {
39 |     @$agg[$b] = $j;
40 | }
41 | 
42 | $memEnd = memory_get_usage();
43 | $timeEnd = microtime(true);
44 | 
45 | $secondTime = $timeEnd - $timeStart;
46 | $secondMemory = $memEnd - $memStart;
47 | 
48 | echo '
    second run
    ';
49 | echo '
    ';
50 | printf('%f seconds 
    ', $secondTime);
51 | echo number_format($secondMemory, 0, '.', ' '), ' bytes
    ';
52 | echo '
    ';
53 | 
54 | #
55 | # Diff
56 | #
57 | echo '
    diff
    ';
58 | echo '
    ';
59 | printf('%f seconds 
    ', $secondTime - $firstTime);
60 | echo number_format($secondMemory - $firstMemory, 0, '.', ' '), ' bytes
    ';
61 | echo '
    ';
62 | printf('%d times slower 
    ', $secondTime / $firstTime);
63 | 


--------------------------------------------------------------------------------
/session/index.php:
--------------------------------------------------------------------------------
 1 | 
 8 | 
 9 | Session for beginners
10 | 


--------------------------------------------------------------------------------
/exception/Education/CommandManager.php:
--------------------------------------------------------------------------------
 1 | cmdDir)) {
31 |             throw new CommandManagerException("Is not directory `$this->cmdDir`");
32 |         }
33 |     }
34 | 
35 |     /**
36 |      * @param string $cmd
37 |      * @return \AbstractCommand
38 |      * @throws IllegalCommandException
39 |      */
40 |     public function getCommandObject($cmd)
41 |     {
42 |         // throw new \Exception("Uncatched");
43 | 
44 |         $cmd = ucfirst($cmd);
45 | 
46 |         $path = __DIR__ . DIRECTORY_SEPARATOR . "{$this->cmdDir}/{$cmd}.php";
47 |         if (!file_exists($path)) {
48 |             throw new IllegalCommandException("Cannot find $path");
49 |         }
50 | 
51 |         require_once $path;
52 | 
53 |         $class = "Education\\Command\\$cmd";
54 | 
55 |         if (!class_exists($class)) {
56 |             throw new IllegalCommandException("Class `$cmd` does not exist");
57 |         }
58 | 
59 |         $command = new $class();
60 |         if (!$command instanceof \Education\Command\AbstractCommand) {
61 |             throw new IllegalCommandException("`$cmd` is not a Command");
62 |         }
63 |         return $command;
64 |     }
65 | }
66 | 


--------------------------------------------------------------------------------
/code-style/psr-4.php:
--------------------------------------------------------------------------------
 1 | 
46 | Package `foo-bar`
47 | 
    48 |      /path/to/packages/foo-bar/
49 |          src/
50 |              Baz.php             # Foo\Bar\Baz
51 |              Qux/
52 |                  Quux.php        # Foo\Bar\Qux\Quux
53 |          tests/
54 |              BazTest.php         # Foo\Bar\BazTest
55 |              Qux/
56 |                  QuuxTest.php    # Foo\Bar\Qux\QuuxTest
57 | 
    
58 | 


--------------------------------------------------------------------------------
/chat.php:
--------------------------------------------------------------------------------
 1 | 
 4 |     
    
 5 |         
    @system: please wait, I try to connect to the server.
    
 6 |     
    
 7 | 
 8 |     
    
 9 |         
    
10 |             
12 |         
    
13 |     
    
14 | 
15 |     
16 |     
56 | 
57 | 


--------------------------------------------------------------------------------
/exception/Education/RequestHelper.php:
--------------------------------------------------------------------------------
 1 | request = $request_array)) {
31 |             $this->request = $_REQUEST;
32 |         }
33 |     }
34 | 
35 |     /**
36 |      * @return mixed
37 |      * @throws EducationException
38 |      */
39 |     public function getCommandString()
40 |     {
41 |         if ($this->command) {
42 |             return $this->command;
43 |         } else {
44 |             if (isset($this->request['cmd'])) {
45 |                 $this->command = $this->request['cmd'];
46 |                 return $this->command;
47 |             } else {
48 |                 throw new EducationException("Request parameter `cmd` not found");
49 |             }
50 |         }
51 |     }
52 | 
53 |     /**
54 |      * @throws EducationException
55 |      * @throws IllegalCommandException
56 |      * @throws \Exception
57 |      */
58 |     public function runCommand()
59 |     {
60 |         $command = $this->getCommandString();
61 |         try {
62 |             $manager = new CommandManager();
63 |             $cmd = $manager->getCommandObject($command);
64 |             $cmd->execute();
65 |         } catch (IllegalCommandException $e) {
66 |             error_log($e->getMessage());
67 |             if ($command != $this->default) {
68 |                 $this->command = $this->default;
69 |                 $this->runCommand();
70 |             } else {
71 |                 throw $e;
72 |             }
73 |         } catch (\Exception $e) {
74 |             throw new EducationException("Package error", 0, $e);
75 |         }
76 |     }
77 | }
78 | 


--------------------------------------------------------------------------------
/session/Education/DbSessionHandler.php:
--------------------------------------------------------------------------------
 1 | 
36 |      * Sessions that have not updated for
37 |      * the last maxlifetime seconds will be removed.
38 |      * 
    
39 |      * @return bool
40 |      */
41 |     public function gc($max_lifetime): bool
42 |     {
43 |         return true;
44 |     }
45 | 
46 |     /**
47 |      * Initialize session
48 |      * @link https://php.net/manual/en/sessionhandlerinterface.open.php
49 |      * @param string $path The path where to store/retrieve the session.
50 |      * @param string $name The session name.
51 |      * @return bool
52 |      */
53 |     public function open($path, $name): bool
54 |     {
55 |         return true;
56 |     }
57 | 
58 | 
59 |     /**
60 |      * Read session data
61 |      * @link https://php.net/manual/en/sessionhandlerinterface.read.php
62 |      * @param string $id The session id to read data for.
63 |      * @return string
64 |      */
65 |     public function read($id): string
66 |     {
67 |         return '';
68 |     }
69 | 
70 |     /**
71 |      * Write session data
72 |      * @link https://php.net/manual/en/sessionhandlerinterface.write.php
73 |      * @param string $id The session id.
74 |      * @param string $data 
    
75 |      * The encoded session data. This data is the
76 |      * result of the PHP internally encoding
77 |      * the $_SESSION superglobal to a serialized
78 |      * string and passing it as this parameter.
79 |      * Please note sessions use an alternative serialization method.
80 |      * 
    
81 |      * @return bool
82 |      */
83 |     public function write($id, $data): bool
84 |     {
85 |         return true;
86 |     }
87 | }
88 | 


--------------------------------------------------------------------------------
/session/decode.php:
--------------------------------------------------------------------------------
 1 | foo = 'bar';
16 | $object->arr = ['hello', 'world'];
17 | 
18 | $_SESSION['object var'] = $object;
19 | $_SESSION['integer again'] = 42;
20 | 
21 | echo '
    ';
22 | echo '
    Session data
    ';
23 | var_dump($_SESSION);
24 | 
25 | $name = ini_get('session.name');
26 | 
27 | $file = $_COOKIE[$name] ?? null;
28 | 
29 | if ($file) {
30 |     $path = ini_get('session.save_path');
31 | 
32 |     if (empty($path)) {
33 |         $path = sys_get_temp_dir();
34 |     }
35 | 
36 |     $data = file_get_contents($path . '/sess_' . $file);
37 | 
38 |     echo '
    File content
    ';
39 |     var_dump($data);
40 | 
41 |     echo '
    Split by pipe
    ';
42 |     $arr = explode("\|", $data);
43 |     var_dump($arr);
44 | 
45 |     $session_value = array();
46 |     $session_key = array();
47 |     $session_key[] = array_shift($arr);
48 |     $session_value[count($arr) - 1] = array_pop($arr);
49 | 
50 |     for ($i = 0, $iMax = count($arr); $i < $iMax; $i++) {
51 |         if (strpos($arr[$i], 'i:') === 0 || strpos($arr[$i], 'd:') === 0) {
52 |             $mass = explode(';', $arr[$i], 2);
53 |             $session_key[] = $mass[1];
54 |             $session_value[$i] = $mass[0] . ';';
55 |         } elseif (strpos($arr[$i], 's:') === 0) {
56 |             $mass = explode(':', $arr[$i], 3);
57 |             $length = (int)$mass[1];
58 |             $session_key[] = substr($mass[2], $length + 3);
59 |             $session_value[$i] = 's:' . $length . ':' . substr($mass[2], 0, $length + 3);
60 |         } elseif (strpos($arr[$i], 'a:') === 0 || strpos($arr[$i], 'O:') === 0) {
61 |             $lastChar = strrpos($arr[$i], '}') + 1;
62 |             $session_key[] = substr($arr[$i], $lastChar);
63 |             $session_value[$i] = substr($arr[$i], 0, $lastChar);
64 |         }
65 |     }
66 |     ksort($session_value);
67 | 
68 |     echo '
    Keys
    ';
69 |     var_dump($session_key);
70 |     echo '
    Values
    ';
71 |     var_dump($session_value);
72 | 
73 |     $result = array_combine($session_key, $session_value);
74 |     $result = array_map('unserialize', $result);
75 |     echo '
    Result
    ';
76 |     var_dump($result);
77 | }
78 | 
79 | echo '
    ';
80 | 


--------------------------------------------------------------------------------
/session/auth/auth-view.phtml:
--------------------------------------------------------------------------------
 1 | isAuth()) : ?>
 4 |     
    
 5 |         
    
 6 |             
    You are logged in as getLogin() ?>
    
 7 |         
    
 8 |         
    
 9 |             Click for logout
10 |         
    
11 |     
    
12 |     
14 | 
16 | 
17 | 
    
18 |     
    
19 |         
    
20 |             
    
21 |                 
    
22 |                     
    Sign in
    
23 |                     error) : ?>
25 |                         
     Login or password are wrong!
    
26 |                     
28 |                 
    
29 |                 
    
30 |                     
    
31 |                         
    
32 |                             
33 |                             
35 |                         
    
36 | 
37 |                         
    
38 |                             
39 |                             
40 |                         
    
41 |                         
42 | 
43 |                     
    
44 |                 
    
45 |             
    
46 |         
    
47 |         
    
48 |             
    
49 |                 
    
50 |                     
    Credentials
    
51 |                 
    
52 |                 
    
53 |                     
    
54 |                         
    login
    
55 |                         
    login ?>
    
56 |                         
    password
    
57 |                         
    pass ?>
    
58 |                     
    
59 |                 
    
60 |             
    
61 |         
    
62 |     
    
63 | 
    
64 | 


--------------------------------------------------------------------------------
/sockets/one.php:
--------------------------------------------------------------------------------
 1 | #!/usr/local/bin/php -q
 2 | \n" .
22 |         "Use following code for run server: php -f ./sockets/one.php" .
23 |         "than try to connect to it: telnet $address $port";
24 |     return;
25 | }
26 | 
27 | // turn on implicit output flushing so we see what we're getting as it comes in
28 | ob_implicit_flush();
29 | 
30 | // create a streaming socket, of type TCP/IP
31 | if (($socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {
32 |     echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
33 |     die();
34 | } else {
35 |     echo "socket created\n";
36 | }
37 | 
38 | // "bind" the socket to the address to "localhost", on port $port
39 | // so this means that all connections on this port are now our resposibility to send/recv data, disconnect, etc..
40 | if (socket_bind($socket, $address, $port) === false) {
41 |     echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($socket)) . "\n";
42 |     die();
43 | } else {
44 |     echo "- bind to $address:$port\n";
45 | }
46 | 
47 | // start listen for connections
48 | if (socket_listen($socket, 5) === false) {
49 |     echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($socket)) . "\n";
50 |     die();
51 | } else {
52 |     echo "- listen\n";
53 | }
54 | 
55 | // server loop
56 | do {
57 |     // accept the client
58 |     if (($client = socket_accept($socket)) === false) {
59 |         echo "socket_accept() failed: reason: " . socket_strerror(socket_last_error($socket)) . "\n";
60 |         break;
61 |     }
62 |     // send instructions
63 |     $msg = "\nWelcome to the PHP Test Server!\r\n" .
64 |         "To quit, type 'quit'. To shut down the server type 'shutdown'.\r\n";
65 |     socket_write($client, $msg, strlen($msg));
66 | 
67 |     // read socket loop
68 |     do {
69 |         // read until newline or 1024 bytes
70 |         if (false === ($buf = socket_read($client, 2048, PHP_NORMAL_READ))) {
71 |             echo "socket_read() failed: reason: " . socket_strerror(socket_last_error($client)) . "\n";
72 |             break 2;
73 |         }
74 |         $buf = trim($buf);
75 |         // nothing
76 |         if (!$buf) {
77 |             continue;
78 |         }
79 |         // `quit` for break read loop
80 |         if ($buf === 'quit') {
81 |             break;
82 |         }
83 |         // `shutdown` for break server loop
84 |         if ($buf === 'shutdown') {
85 |             socket_close($client);
86 |             break 2;
87 |         }
88 |         $talkback = "PHP: You said '$buf'.\r\n";
89 |         socket_write($client, $talkback, strlen($talkback));
90 |         echo $buf;
91 |     } while (true);
92 |     socket_close($client);
93 | } while (true);
94 | socket_close($socket);
95 | 


--------------------------------------------------------------------------------
/sockets/stream-http.php:
--------------------------------------------------------------------------------
 1 | #!/usr/local/bin/php -q
 2 | \n" .
23 |         "Use following code for run server: php -f ./sockets/stream-http.php" .
24 |         "than open page http://$address:$port";
25 |     return;
26 | }
27 | 
28 | // turn on implicit output flushing so we see what we're getting as it comes in
29 | ob_implicit_flush();
30 | 
31 | // create a streaming socket server, of type TCP/IP
32 | if (($server = stream_socket_server("tcp://$address:$port", $errNo, $errStr)) === false) {
33 |     echo "stream_socket_server() failed: reason: $errStr($errNo)\n";
34 | } else {
35 |     echo "socket server created\n";
36 | }
37 | 
38 | // create a list of all the clients
39 | $clients = array($server);
40 | 
41 | while (true) {
42 |     // create a copy, so $clients doesn't get modified by stream_select()
43 |     $read = $clients;
44 |     // no more sockets for monitoring
45 |     $write = $except = null;
46 | 
47 |     // get a list of all the clients that have data to be read from
48 |     // if there are no clients with data, go to next iteration
49 |     if (!stream_select($read, $write, $except, null)) {
50 |         break;
51 |     }
52 | 
53 |     // check if there is a client trying to connect
54 |     if (in_array($server, $read)) {
55 |         // accept the client, and add him to the $clients array
56 |         $clients[] = $client = stream_socket_accept($server, -1);
57 | 
58 |         // log message to server console
59 |         $name = stream_socket_get_name($client, true);
60 |         echo "connected: {$name}\n";
61 | 
62 |         // remove the listening socket from the clients-with-data array
63 |         $key = array_search($server, $read);
64 |         unset($read[$key]);
65 |     }
66 | 
67 |     // loop through all the clients that have data to read from
68 |     foreach ($read as $connect) {
69 |         // read HTTP request
70 |         $request = '';
71 |         while ($buffer = rtrim(fgets($connect))) {
72 |             $request .= "\t" . $buffer . "\n";
73 |         }
74 |         echo "received:\n";
75 |         echo $request;
76 | 
77 |         $response = "HTTP/1.1 200 OK\r\n" .
78 |             "Content-Type: text/html\r\n" .
79 |             "Connection: close\r\n" .
80 |             "\r\n" .
81 |             "Hello!";
82 | 
83 |         // send HTTP response
84 |         fwrite($connect, $response);
85 | 
86 |         echo "send response\n";
87 | 
88 |         // log message to server console
89 |         $name = stream_socket_get_name($connect, true);
90 |         echo "disconnected: {$name}\n\n";
91 | 
92 |         // disconnect
93 |         fclose($connect);
94 |         unset($clients[array_search($connect, $clients, false)]);
95 |     }
96 | }
97 | 
98 | fclose($server);
99 | 


--------------------------------------------------------------------------------
/sockets/web-sockets.php:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/env php
  2 | \n" .
 25 |         "Use following code for run server: php -f ./sockets/web-sockets.php" .
 26 |         "than open page chat.php";
 27 |     return;
 28 | }
 29 | 
 30 | // turn on implicit output flushing so we see what we're getting as it comes in
 31 | ob_implicit_flush();
 32 | 
 33 | // funcitons
 34 | require_once 'funcitons.php';
 35 | 
 36 | // create a streaming socket server, of type TCP/IP
 37 | if (($server = stream_socket_server("tcp://$address:$port", $errNo, $errStr)) === false) {
 38 |     echo "stream_socket_server() failed: reason: $errStr($errNo)\n";
 39 | } else {
 40 |     echo "socket server created\n";
 41 | }
 42 | 
 43 | // create a list of all the clients
 44 | $clients = array($server);
 45 | 
 46 | while (true) {
 47 |     // create a copy, so $clients doesn't get modified by stream_select()
 48 |     $read = $clients;
 49 |     // no more sockets for monitoring
 50 |     $write = $except = null;
 51 | 
 52 |     // get a list of all the clients that have data to be read from
 53 |     // if there are no clients with data, go to next iteration
 54 |     if (!stream_select($read, $write, $except, null)) {
 55 |         break;
 56 |     }
 57 | 
 58 |     // check if there is a client trying to connect
 59 |     if (in_array($server, $read, false)) {
 60 |         // accept the client, try to send handshake
 61 |         if ($client = stream_socket_accept($server, -1)) {
 62 |             // retrieve and check HTTP headers
 63 |             $headers = processRequest($client);
 64 |             if (isset($headers['Sec-WebSocket-Key'])) {
 65 |                 $response = handshakeResponse($headers['Sec-WebSocket-Key']);
 66 |                 // send handshake response
 67 |                 fwrite($client, $response);
 68 |                 // send `hello` data
 69 |                 fwrite($client, encode('Welcome to the PHP Test Server!'));
 70 |                 // add client to the $clients array
 71 |                 $clients[] = $client;
 72 |                 // log message to server console
 73 |                 $name = stream_socket_get_name($client, true);
 74 |                 echo "connected: {$name}\n";
 75 |             } else {
 76 |                 echo "invalid client data\n";
 77 |             }
 78 |         }
 79 | 
 80 |         unset($read[array_search($server, $read)]);
 81 |     }
 82 | 
 83 |     // loop through all the clients that have data to read from
 84 |     foreach ($read as $client) {
 85 |         $data = fread($client, 100000);
 86 | 
 87 |         // close connection
 88 |         if (!strlen($data)) {
 89 |             fclose($client);
 90 |             unset($clients[array_search($client, $clients, false)]);
 91 |             continue;
 92 |         }
 93 |         // received data
 94 |         $message = trim(decode($data)['payload']);
 95 | 
 96 |         if (!empty($message)) {
 97 |             echo "received:\n";
 98 |             echo $message . "\n";
 99 | 
100 |             $key = array_search($client, $clients, false);
101 | 
102 |             broadcast($clients, "user #{$key}: $message");
103 |         }
104 |     }
105 | }
106 | 
107 | fclose($server);
108 | 


--------------------------------------------------------------------------------
/display.php:
--------------------------------------------------------------------------------
  1 | 
 31 | 
 32 | 
 33 | 
 34 | 
 35 |     
 36 |     
 37 |     
 38 |     Examples of code
 39 |     
 40 |     
 42 |     
 43 |     
 45 |     
 54 | 
 55 | 
 56 | 
 85 | 
    
 86 |     
    
 87 |         
    
 88 |             
    
 89 |                 Code
 90 |                 
 91 |                     
 92 |                 
 93 |             
    
 94 |         
    
 95 |         
    
 96 |             
 97 |         
    
 98 |     
    
 99 | 
100 |     
    
101 |         
    
102 |             
    Result
    
103 |             
104 |         
    
105 |         
    
106 |             
107 |         
    
108 |     
    
109 | 
    
110 | 
    
111 |     
115 | 
    
116 | 
117 | 
118 | 
119 | 
122 | 
123 | 
124 | 
125 | 


--------------------------------------------------------------------------------
/sockets/many.php:
--------------------------------------------------------------------------------
  1 | #!/usr/local/bin/php -q
  2 | \n" .
 23 |         "Use following code for run server: php -f ./sockets/many.php" .
 24 |         "than try to connect to it: telnet $address $port";
 25 |     return;
 26 | }
 27 | 
 28 | // turn on implicit output flushing so we see what we're getting as it comes in
 29 | ob_implicit_flush();
 30 | 
 31 | 
 32 | // create a streaming socket, of type TCP/IP
 33 | if (($socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {
 34 |     echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
 35 | } else {
 36 |     echo "socket created\n";
 37 | }
 38 | 
 39 | // set the option to reuse the port
 40 | socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);
 41 | 
 42 | // "bind" the socket to the address to "localhost", on port $port
 43 | // so this means that all connections on this port are now our resposibility to send/recv data, disconnect, etc..
 44 | if (socket_bind($socket, $address, $port) === false) {
 45 |     echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($socket)) . "\n";
 46 | } else {
 47 |     echo "- bind to $address:$port\n";
 48 | }
 49 | 
 50 | // start listen for connections
 51 | if (socket_listen($socket, 5) === false) {
 52 |     echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($socket)) . "\n";
 53 | } else {
 54 |     echo "- listen\n";
 55 | }
 56 | 
 57 | socket_set_nonblock($socket);
 58 | 
 59 | // create a list of all the clients that will be connected to us..
 60 | // add the listening socket to this list
 61 | $clients = array($socket);
 62 | 
 63 | // server loop
 64 | do {
 65 |     // create a copy, so $clients doesn't get modified by socket_select()
 66 |     $read = $clients;
 67 | 
 68 |     // no more sockets for monitoring
 69 |     $write = $except = null;
 70 | 
 71 |     // get a list of all the clients that have data to be read from
 72 |     // if there are no clients with data, go to next iteration
 73 |     $numChangedSockets = socket_select($read, $write, $except, 0);
 74 |     if ($numChangedSockets === false) {
 75 |         // error handling
 76 |         echo "socket_select() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
 77 |     } elseif ($numChangedSockets < 1) {
 78 |         // nothing happened
 79 |         continue;
 80 |     }
 81 | 
 82 |     // check if there is a client trying to connect
 83 |     if (in_array($socket, $read, false)) {
 84 |         // accept the client, and add him to the $clients array
 85 |         $clients[] = $client = socket_accept($socket);
 86 | 
 87 |         socket_set_nonblock($client);
 88 | 
 89 |         // client UID
 90 |         $key = array_search($client, $clients, false);
 91 | 
 92 |         // send to the client a welcome message
 93 |         $msg = "Welcome to the PHP Test Server!\r\n" .
 94 |             "There are " . (count($clients) - 1) . " client(s) connected to the server\r\n" .
 95 |             "Your client ID: {$key} \r\n";
 96 |         socket_write($client, $msg, strlen($msg));
 97 | 
 98 |         // log message to server console
 99 |         socket_getpeername($client, $ip);
100 |         echo "New client '{$key}' connected: {$ip}\n";
101 | 
102 |         // remove the listening socket from the clients-with-data array
103 |         $key = array_search($socket, $read);
104 |         unset($read[$key]);
105 |     }
106 | 
107 |     // loop through all the clients that have data to read from
108 |     foreach ($read as $readClient) {
109 |         // read until newline or 1024 bytes
110 |         // socket_read while show errors when the client is disconnected, so silence the error messages
111 |         $data = @socket_read($readClient, 1024, PHP_NORMAL_READ);
112 | 
113 |         // check if the client is disconnected
114 |         if ($data === false) {
115 |             // remove client for $clients array
116 |             $key = array_search($readClient, $clients, false);
117 |             unset($clients[$key]);
118 |             echo "Client '{$key}' disconnected.\n";
119 |             // continue to the next client to read from, if any
120 |             continue;
121 |         }
122 | 
123 |         // trim off the trailing/beginning white spaces
124 |         $data = trim($data);
125 | 
126 |         // check if there is any data after trimming off the spaces
127 |         if (!empty($data)) {
128 |             // client UID
129 |             $key = array_search($readClient, $clients, false);
130 | 
131 |             // prepare message
132 |             $msg = "Client '{$key}': {$data}\r\n";
133 | 
134 |             // log message to server console
135 |             echo $msg;
136 | 
137 |             // send this to all the clients in the $clients array (except the first one, which is a listening socket)
138 |             foreach ($clients as $sendClient) {
139 |                 // if its the listening socket
140 |                 if ($sendClient == $socket) {
141 |                     continue;
142 |                 }
143 | 
144 |                 // write the message to the client -- add a newline character to the end of the message
145 |                 socket_write($sendClient, $msg);
146 |             } // end of broadcast foreach
147 |         }
148 |     }
149 | } while (true);
150 | 
151 | socket_close($socket);
152 | 


--------------------------------------------------------------------------------
/sockets/funcitons.php:
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  1 |  '', 'payload' => '', 'error' => 'protocol error (1002)');
 75 |     }
 76 | 
 77 |     switch ($opcode) {
 78 |         // text frame:
 79 |         case 1:
 80 |             $decodedData['type'] = 'text';
 81 |             break;
 82 |         case 2:
 83 |             $decodedData['type'] = 'binary';
 84 |             break;
 85 |         // connection close frame:
 86 |         case 8:
 87 |             $decodedData['type'] = 'close';
 88 |             break;
 89 |         // ping frame:
 90 |         case 9:
 91 |             $decodedData['type'] = 'ping';
 92 |             break;
 93 |         // pong frame:
 94 |         case 10:
 95 |             $decodedData['type'] = 'pong';
 96 |             break;
 97 |         default:
 98 |             return array('type' => '', 'payload' => '', 'error' => 'unknown opcode (1003)');
 99 |     }
100 | 
101 |     if ($payloadLength === 126) {
102 |         $mask = substr($data, 4, 4);
103 |         $payloadOffset = 8;
104 |         $dataLength = bindec(sprintf('%08b', ord($data[2])) . sprintf('%08b', ord($data[3]))) + $payloadOffset;
105 |     } elseif ($payloadLength === 127) {
106 |         $mask = substr($data, 10, 4);
107 |         $payloadOffset = 14;
108 |         $tmp = '';
109 |         for ($i = 0; $i < 8; $i++) {
110 |             $tmp .= sprintf('%08b', ord($data[$i + 2]));
111 |         }
112 |         $dataLength = bindec($tmp) + $payloadOffset;
113 |         unset($tmp);
114 |     } else {
115 |         $mask = substr($data, 2, 4);
116 |         $payloadOffset = 6;
117 |         $dataLength = $payloadLength + $payloadOffset;
118 |     }
119 | 
120 |     /**
121 |      * We have to check for large frames here. socket_recv cuts at 1024 bytes
122 |      * so if websocket-frame is > 1024 bytes we have to wait until whole
123 |      * data is transferd.
124 |      */
125 |     if (strlen($data) < $dataLength) {
126 |         return false;
127 |     }
128 | 
129 |     if ($isMasked) {
130 |         for ($i = $payloadOffset; $i < $dataLength; $i++) {
131 |             $j = $i - $payloadOffset;
132 |             if (isset($data[$i])) {
133 |                 $unmaskedPayload .= $data[$i] ^ $mask[$j % 4];
134 |             }
135 |         }
136 |         $decodedData['payload'] = $unmaskedPayload;
137 |     } else {
138 |         $payloadOffset -= 4;
139 |         $decodedData['payload'] = substr($data, $payloadOffset);
140 |     }
141 | 
142 |     return $decodedData;
143 | }
144 | 
145 | /**
146 |  * @param        $payload
147 |  * @param string $type
148 |  * @param bool $masked
149 |  *
150 |  * @return array|string
151 |  * @throws Exception
152 |  */
153 | function encode($payload, $type = 'text', $masked = false)
154 | {
155 |     $frameHead = [];
156 |     $payloadLength = strlen($payload);
157 | 
158 |     switch ($type) {
159 |         case 'text':
160 |             // first byte indicates FIN, Text-Frame (10000001):
161 |             $frameHead[0] = 129;
162 |             break;
163 |         case 'close':
164 |             // first byte indicates FIN, Close Frame(10001000):
165 |             $frameHead[0] = 136;
166 |             break;
167 |         case 'ping':
168 |             // first byte indicates FIN, Ping frame (10001001):
169 |             $frameHead[0] = 137;
170 |             break;
171 |         case 'pong':
172 |             // first byte indicates FIN, Pong frame (10001010):
173 |             $frameHead[0] = 138;
174 |             break;
175 |     }
176 | 
177 |     // set mask and payload length (using 1, 3 or 9 bytes)
178 |     if ($payloadLength > 65535) {
179 |         $payloadLengthBin = str_split(sprintf('%064b', $payloadLength), 8);
180 |         $frameHead[1] = ($masked === true) ? 255 : 127;
181 |         for ($i = 0; $i < 8; $i++) {
182 |             $frameHead[$i + 2] = bindec($payloadLengthBin[$i]);
183 |         }
184 |         // most significant bit MUST be 0
185 |         if ($frameHead[2] > 127) {
186 |             return ['type' => '', 'payload' => '', 'error' => 'frame too large (1004)'];
187 |         }
188 |     } elseif ($payloadLength > 125) {
189 |         $payloadLengthBin = str_split(sprintf('%016b', $payloadLength), 8);
190 |         $frameHead[1] = ($masked === true) ? 254 : 126;
191 |         $frameHead[2] = bindec($payloadLengthBin[0]);
192 |         $frameHead[3] = bindec($payloadLengthBin[1]);
193 |     } else {
194 |         $frameHead[1] = ($masked === true) ? $payloadLength + 128 : $payloadLength;
195 |     }
196 | 
197 |     // convert frame-head to string:
198 |     foreach (array_keys($frameHead) as $i) {
199 |         $frameHead[$i] = chr($frameHead[$i]);
200 |     }
201 |     if ($masked === true) {
202 |         // generate a random mask:
203 |         $mask = [];
204 |         for ($i = 0; $i < 4; $i++) {
205 |             $mask[$i] = chr(random_int(0, 255));
206 |         }
207 | 
208 |         $frameHead = array_merge($frameHead, $mask);
209 |     }
210 |     $frame = implode('', $frameHead);
211 | 
212 |     // append payload to frame:
213 |     foreach ($payload as $i => $iValue) {
214 |         $frame .= ($masked === true) ? $iValue ^ $mask[$i % 4] : $payload[$i];
215 |     }
216 | 
217 |     return $frame;
218 | }
219 | 
220 | /**
221 |  * @param $clients
222 |  * @param $message
223 |  * @throws Exception
224 |  */
225 | function broadcast($clients, $message)
226 | {
227 |     // create a copy, so $clients doesn't get modified by stream_select()
228 |     $write = $clients;
229 |     // no more sockets for monitoring
230 |     $read = $except = null;
231 | 
232 |     array_shift($write);
233 | 
234 |     $message = encode(strip_tags($message));
235 | 
236 |     if (stream_select($read, $write, $except, 0)) {
237 |         foreach ($write as $client) {
238 |             @fwrite($client, $message);
239 |         }
240 |     }
241 | }
242 | 


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