├── l13-form-validation-2.php
├── l1-echo.php
├── l3-variable.php
├── crud
    ├── logout.php
    ├── index.php
    ├── footer.php
    ├── .htaccess
    ├── nav.php
    ├── header.php
    ├── signin.php
    ├── updateProfile.php
    ├── changePass.php
    └── signup.php
├── namespace
    ├── person2.php
    ├── person1.php
    └── personDetails.php
├── l6-condition.php
├── l2-comments.php
├── crud2
    ├── delete.php
    ├── index.php
    ├── allStudent.php
    └── updatestudent.php
├── l4-dataType.php
├── l7-loop.php
├── l11-date.php
├── l15-oop2.php
├── l14-oop.php
├── l16-oop3.php
├── l5-operators.php
├── l10-pre-define-functions.php
├── l9-array.php
├── hw
    └── form validation.php
├── quries.txt
├── l8-function.php
└── l12-form-validation.php


/l13-form-validation-2.php:
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1 | 


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/l1-echo.php:
--------------------------------------------------------------------------------
1 | <?php 
2 |     echo "Hello World";
3 | 


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/l3-variable.php:
--------------------------------------------------------------------------------
1 | <?php
2 | $xyz_123 = 123;
3 | 
4 | $_jamalMia_123_ = null;
5 | 


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/crud/logout.php:
--------------------------------------------------------------------------------
1 | <?php  
2 |     session_start();
3 |     session_unset();
4 |     header("location: ./");
5 | 


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/crud/index.php:
--------------------------------------------------------------------------------
1 | <?php
2 | include_once("./header.php");
3 | ?>
4 | 
5 | <?php
6 | include_once("./footer.php");
7 | ?>


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/namespace/person2.php:
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1 | <?php
2 | 
3 | namespace Shefa;
4 | 
5 | class personDetails
6 | {
7 |     public $name = "Sabiha Shefa";
8 | }
9 | 


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/l6-condition.php:
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1 | <?php
2 | $x = 15;
3 | 
4 | if ($x > 20) {
5 |     echo "Amar Bangladesh";
6 | } else {
7 |     echo "Joy Bangla";
8 | }
9 | 


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/namespace/person1.php:
--------------------------------------------------------------------------------
1 | <?php
2 | 
3 | namespace nadim;
4 | 
5 | class personDetails
6 | {
7 |     public $name = "Abdullah Nadim";
8 | }
9 | 


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/namespace/personDetails.php:
--------------------------------------------------------------------------------
1 | <?php
2 | include_once("./person1.php");
3 | include_once("./person2.php");
4 | 
5 | $obj1 = new nadim\personDetails;
6 | echo $obj1->name;
7 | $obj2 = new Shefa\personDetails;
8 | echo $obj2->name;
9 | 


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/l2-comments.php:
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 1 | <?php
 2 | // this is a single line comment
 3 | 
 4 | # this is also a singleline comment
 5 | 
 6 | /*
 7 |     this is a 
 8 |     multiline 
 9 |     comment 
10 |     */
11 | 
12 | /**
13 |  * this is
14 |  * also a
15 |  * multiline comment
16 |  */
17 | 


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/crud2/delete.php:
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1 | <?php
2 | $conn = mysqli_connect("localhost", "root", "", "student79");
3 | $id = $_GET["id"];
4 | $delete = $conn->query("DELETE FROM users WHERE id = $id");
5 | if ($delete) {
6 |     echo "Data deleted successfulli";
7 | }
8 | ?>
9 | <a href="./allStudent.php"><button>Back</button></a>


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/crud/footer.php:
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1 | </div>
2 | <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.0/js/bootstrap.bundle.min.js" integrity="sha512-VK2zcvntEufaimc+efOYi622VN5ZacdnufnmX7zIhCPmjhKnOi9ZDMtg1/ug5l183f19gG1/cBstPO4D8N/Img==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
3 | </body>
4 | 
5 | </html>


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/crud/.htaccess:
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 1 | RewriteEngine On
 2 | RewriteBase /
 3 | 
 4 | # To externally redirect /dir/foo.php to /dir/foo
 5 | RewriteCond %{REQUEST_METHOD} !POST
 6 | RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s([^.]+)\.php [NC]
 7 | RewriteRule ^ %1 [R=302,L,NE]
 8 | 
 9 | ## To internally redirect /dir/foo to /dir/foo.php
10 | RewriteCond %{REQUEST_FILENAME}.php -f [NC]
11 | RewriteRule ^ %{REQUEST_URI}.php [L]
12 | 


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/l4-dataType.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | 
 3 | /**
 4 |  * string
 5 |  * int
 6 |  * float
 7 |  * null
 8 |  * boolean
 9 |  * array
10 |  * object
11 |  * resource
12 |  */
13 | 
14 | var_dump("Hello World");
15 | echo "<br>";
16 | var_dump(123);
17 | echo "<br>";
18 | var_dump(123.45);
19 | echo "<br>";
20 | var_dump(null);
21 | echo "<br>";
22 | var_dump(true);
23 | echo "<br>";
24 | var_dump(["Dhaka", "Rajshahi", "Khulna"]);
25 | echo "<br>";
26 | 
27 | class nadim
28 | {
29 |     public $city = "Narshindi";
30 | }
31 | 
32 | $obj = new nadim;
33 | var_dump($obj);
34 | 


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/l7-loop.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | 
 3 | /**
 4 |  * while loop
 5 |  * starting point
 6 |  * ending point
 7 |  * task
 8 |  * gap
 9 |  */
10 | 
11 | $x = 0;
12 | while ($x < 10) {
13 |     echo $x++;
14 | }
15 | 
16 | /**
17 |  * task
18 |  * print this with while loop
19 |  * 987654321
20 |  */
21 | 
22 | echo "<br>";
23 | 
24 | /**
25 |  * for loop
26 |  * starting point, ending point, gap
27 |  */
28 | 
29 | for ($i = 0; $i < 10; $i++) {
30 |     echo $i;
31 | }
32 | echo "<br>";
33 | /**
34 |  * do while
35 |  */
36 | 
37 | $x = 20;
38 | do {
39 |     echo $x++;
40 | } while ($x < 10);
41 | 
42 | /**
43 |  * task
44 |  * print all the even number from 1 to 20 by using for loop and if condition
45 |  */
46 | 


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/l11-date.php:
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 1 | <?php
 2 | date_default_timezone_set("Asia/Dhaka");
 3 | echo date("m-d-y h:i:s a") . "<br>";
 4 | echo date("M-d-Y D H:i:s A") . "<br>";
 5 | echo date("F/d/Y l") . "<br>";
 6 | 
 7 | // mktime h m s m d y
 8 | $myTime = mktime(0, 0, 0, 4, 2, 2004);
 9 | echo date("F/d/Y l", $myTime) . "<br>";
10 | 
11 | //strtotime
12 | $s2t1 = strtotime("next friday");
13 | echo date("F/d/Y l", $s2t1) . "<br>";
14 | 
15 | $s2t2 = strtotime("+3 years +2 month + 17 days");
16 | echo date("F/d/Y l", $s2t2) . "<br>";
17 | 
18 | $startDate = strtotime("next friday");
19 | $endDate = strtotime("+6 weeks", $startDate);
20 | while ($startDate <= $endDate) {
21 |     echo date("F/d/Y l", $startDate) . "<br>";
22 |     $startDate = strtotime("+1 week", $startDate);
23 | }
24 | 


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/l15-oop2.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | class dipti
 3 | {
 4 |     private static string $address = "Daffodil Tower";
 5 |     public int $age = 20;
 6 |     private const name = "Daffodil International Professional Training Institute";
 7 |     public static string | null $uName = "Daffodil Insernational University";
 8 | 
 9 |     /* public function __destruct()
10 |     {
11 |         echo dipti::$uName;
12 |     } */
13 | 
14 |     private function __construct()
15 |     {
16 |         return;
17 |     }
18 | 
19 |     public static function aws(): string
20 |     {
21 |         return "Amazon Web Service - at " . dipti::$address . " at " . dipti::name;
22 |     }
23 | }
24 | 
25 | /* $dObj = new dipti;
26 | echo $dObj->aws(); */
27 | echo dipti::$uName . "<br>" . dipti::aws();
28 | 


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/crud2/index.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | $conn = mysqli_connect("localhost", "root", "", "student79");
 3 | if (isset($_POST['addStudent'])) {
 4 |     $sname = $_POST['sname'];
 5 |     if (!empty($sname)) {
 6 |         $insert = $conn->query("INSERT INTO `users` (`name`) VALUES ('$sname')");
 7 |         if (!$insert) {
 8 |             echo "Something went wrong";
 9 |         } else {
10 |             echo "Student added successfully";
11 |         }
12 |     }
13 | }
14 | ?>
15 | <!DOCTYPE html>
16 | <html lang="en">
17 | 
18 | <head>
19 |     <meta charset="UTF-8">
20 |     <meta name="viewport" content="width=device-width, initial-scale=1.0">
21 |     <title>Document</title>
22 | </head>
23 | 
24 | <body>
25 |     <form action="" method="post">
26 |         <input type="text" placeholder="Student Name" name="sname">
27 |         <input type="submit" name="addStudent">
28 |     </form>
29 | </body>
30 | 
31 | </html>


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/l14-oop.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | class myClass
 3 | {
 4 |     public $myName = "Asif Abir";
 5 |     public $myAge = 37;
 6 |     protected $myWives = 1;
 7 | 
 8 | 
 9 |     public function mainSkill()
10 |     {
11 |         return "Web Developer";
12 |     }
13 | 
14 |     public function totalWife()
15 |     {
16 |         return "Total wives of " . $this->myName . " is " . $this->myWives;
17 |     }
18 | }
19 | 
20 | $myObj = new myClass;
21 | echo $myObj->myName . "<br>";
22 | echo $myObj->mainSkill() . "<br>";
23 | // echo $myObj->myWives . "<br>";
24 | echo $myObj->totalWife() . "<br>";
25 | 
26 | class myChield extends myClass
27 | {
28 |     public function myChieldFunc()
29 |     {
30 |         return "My father name is " . $this->myName;
31 |     }
32 | }
33 | 
34 | $myChieldObj = new myChield;
35 | echo $myChieldObj->myChieldFunc();
36 | 
37 | // make a private propertin on the main class
38 | // call it through the object
39 | // use it on any internal function
40 | // use it on a chiled class
41 | 


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/crud2/allStudent.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | $conn = mysqli_connect("localhost", "root", "", "student79");
 3 | $select = $conn->query("SELECT * FROM users");
 4 | ?>
 5 | <!DOCTYPE html>
 6 | <html lang="en">
 7 | 
 8 | <head>
 9 |     <meta charset="UTF-8">
10 |     <meta name="viewport" content="width=device-width, initial-scale=1.0">
11 |     <title>Document</title>
12 | </head>
13 | 
14 | <body>
15 |     <table>
16 |         <tr>
17 |             <td>ID</td>
18 |             <td>Name</td>
19 |             <td>Action</td>
20 |         </tr>
21 |         <?php while ($data = $select->fetch_object()) { ?>
22 |             <tr>
23 |                 <td><?= $data->id ?></td>
24 |                 <td><?= $data->name ?></td>
25 |                 <td>
26 |                     <a href="./updatestudent.php?id=<?= $data->id ?>">Update</a>
27 |                     <a href="./delete.php?id=<?= $data->id ?>">Delete</a>
28 |                 </td>
29 |             </tr>
30 |         <?php } ?>
31 |     </table>
32 | </body>
33 | 
34 | </html>


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/l16-oop3.php:
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 1 | <?php
 2 | interface message
 3 | {
 4 |     public function revMsg(): string;
 5 | }
 6 | 
 7 | 
 8 | abstract class mobile implements message
 9 | {
10 |     protected static string $name;
11 |     protected static string $msg;
12 |     public function __construct($name, $msg)
13 |     {
14 |         mobile::$name = $name;
15 |         mobile::$msg = $msg;
16 |     }
17 |     abstract public function mobileRev(): string;
18 | }
19 | 
20 | trait breakTrait
21 | {
22 |     public function revMsg(): string
23 |     {
24 |         return mobile::$msg;
25 |     }
26 |     public function mobileRev(): string
27 |     {
28 |         return mobile::$name . " " . $this->revMsg() . "<br>";
29 |     }
30 | }
31 | 
32 | class samsungMobile extends mobile
33 | {
34 |     use breakTrait;
35 | }
36 | 
37 | $samObj = new samsungMobile("Samsung", "is a best android mobile");
38 | echo $samObj->mobileRev();
39 | 
40 | class iPhone extends mobile
41 | {
42 |     use breakTrait;
43 | }
44 | 
45 | $objIphone = new iPhone("iPhone", "is the best mobile");
46 | echo $objIphone->mobileRev();
47 | 


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/l5-operators.php:
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 1 | <?php
 2 | 
 3 | /**
 4 |  * Arithmetic operators
 5 |  * +
 6 |  * -
 7 |  * *
 8 |  * /
 9 |  * %
10 |  * **
11 |  */
12 | 
13 | /**
14 |  * Assignment operators
15 |  * =
16 |  * =+
17 |  * -=
18 |  * *=
19 |  * /=
20 |  * %=
21 |  */
22 | 
23 | /**
24 |  * Comparison operators
25 |  * ==
26 |  * ===
27 |  * !=
28 |  * !==
29 |  * <
30 |  * >
31 |  * <=
32 |  * >=
33 |  * <>
34 |  * <=>
35 |  */
36 | 
37 | /**
38 |  * Increment/Decrement operators
39 |  * ++
40 |  * --
41 |  */
42 | 
43 | /**
44 |  * Logical operators
45 |  * &&
46 |  * ||
47 |  * and
48 |  * or
49 |  * xor
50 |  * !
51 |  */
52 | 
53 | /**
54 |  * String Operators
55 |  * .
56 |  * .=
57 |  */
58 | 
59 | /**
60 |  * Array Operators
61 |  * +
62 |  * ==
63 |  * ===
64 |  * !=
65 |  * <>
66 |  * !==
67 |  */
68 | 
69 | /**
70 |  * Conditional Assignment Operators
71 |  * ?:
72 |  * ??
73 |  */
74 | 
75 | 
76 | $x = 15;
77 | /* if ($x < 20) {
78 |     echo "Halum";
79 | } else {
80 |     echo "Hulum";
81 | } */
82 | 
83 | echo ($x < 20) ? "Halum" : "Hulum";
84 | // $y = 123;
85 | echo $y ?? "<br>Joy Bangla";
86 | 


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/l10-pre-define-functions.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | $str = "This is a demo text";
 3 | 
 4 | echo strlen($str) . "<br>";
 5 | echo strrev($str) . "<br>";
 6 | echo strpos($str, "demo") . "<br>";
 7 | echo str_word_count($str) . "<br>";
 8 | echo substr($str, 0, 4) . "<br>";
 9 | echo substr($str, -9, 4) . "<br>";
10 | echo str_replace("demo", "dangerous", $str) . "<br>";
11 | 
12 | $pName = "abdulla nadim";
13 | echo ucfirst($pName) . "<br>";
14 | echo strtoupper($pName) . "<br>";
15 | echo ucwords($pName) . "<br>";
16 | 
17 | echo "<pre>";
18 | print_r(explode(" ", $pName));
19 | echo "</pre>";
20 | 
21 | $arr = ["Nadim", "is", "not", "a", "bad", "boy."];
22 | echo implode(" ", $arr) . "<br>";
23 | 
24 | if (is_string("Dhaka")) {
25 |     echo "Joy Bangla<br>";
26 | } else {
27 |     echo "Amar Bangladesh<br>";
28 | }
29 | 
30 | echo is_int(123) . "<br>";
31 | 
32 | /**
33 |  * $sentence = "We live in Bangladesh";
34 |  * show it on php like this
35 |  * We
36 |  * Live
37 |  * In
38 |  * Bangladesh
39 |  * explode -> loop -> ucfirst -> "<br>"
40 |  */
41 | 
42 | $sentence = "We live in Bangladesh";
43 | $sArr = explode(" ", $sentence);
44 | for ($i = 0; $i < count($sArr); $i++) {
45 |     echo ucfirst($sArr[$i]) . "<br>";
46 | }
47 | 


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/crud2/updatestudent.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | $conn = mysqli_connect("localhost", "root", "", "student79");
 3 | $id = $_GET["id"] ?? header("location: ./index.php");
 4 | $preData = $conn->query("SELECT * FROM users WHERE id = $id");
 5 | $preData->num_rows != 1 && header("location: ./index.php");
 6 | $pd = $preData->fetch_object();
 7 | if (isset($_POST['upStudent'])) {
 8 |     $sname = $_POST['sname'];
 9 |     if (!empty($sname)) {
10 |         $update = $conn->query("UPDATE users SET name = '$sname' WHERE id = $id");
11 |         if (!$update) {
12 |             echo "Something went wrong";
13 |         } else {
14 |             echo "Student updated successfully";
15 |         }
16 |     }
17 | }
18 | ?>
19 | <!DOCTYPE html>
20 | <html lang="en">
21 | 
22 | <head>
23 |     <meta charset="UTF-8">
24 |     <meta name="viewport" content="width=device-width, initial-scale=1.0">
25 |     <title>Document</title>
26 | </head>
27 | 
28 | <body>
29 |     <form action="" method="post">
30 |         <input type="text" placeholder="Student Name" name="sname" value="<?= $pd->name ?>">
31 |         <input type="submit" name="upStudent">
32 |     </form>
33 |     <br><br>
34 |     <a href="./allStudent.php">
35 |         <button>Back</button>
36 |     </a>
37 | </body>
38 | 
39 | </html>


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/l9-array.php:
--------------------------------------------------------------------------------
 1 | <?php 
 2 | 
 3 |     // indexed array
 4 |     $persons = array("Kaka", "Mama", "Dada");
 5 |     $students = ["Abdullah", "Shefa"];
 6 | 
 7 |     // echo $persons;
 8 |     print_r($persons);
 9 | 
10 |     echo "<pre>";
11 |     print_r($persons);
12 |     echo "</pre>";
13 | 
14 |     echo $persons[0].", ".$persons[1].", ".$persons[2];
15 | 
16 |     echo "<br>";
17 | 
18 |     for ($i=0; $i < count($persons); $i++) { 
19 |         if($i < (count($persons) - 1)){
20 |             $coma = ", ";
21 |         }else{
22 |             $coma = ".";
23 |         }
24 |         echo $persons[$i].$coma;
25 |     }
26 |     echo "<br>";
27 |     //associative array
28 |     $abdullah = ["name" => "Abdulla Al Nadim", "age" => 20, "city" => "Narshindi"];
29 |     print_r($abdullah);
30 |     echo "<pre>";
31 |     print_r($abdullah);
32 |     echo "</pre>";
33 |     echo $abdullah["name"];
34 |     echo "<br>";
35 | 
36 |     foreach($abdullah as $key => $val){
37 |         echo ucfirst($key).": ".$val."<br>";
38 |     }
39 | 
40 | 
41 |     // multidimontionl array
42 | 
43 |     $myStudents = [
44 |         ["Kamla", "Dhaka", 20],
45 |         ["Jamal", "Khulna", 30],
46 |         ["Tomal", "Bogura", 40]
47 |     ];
48 |     echo "<pre>";
49 |     print_r($myStudents);
50 |     echo "</pre>";
51 | 
52 |     echo $myStudents[2][1];
53 | ?>


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/hw/form validation.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | 
 3 | if (isset($_POST["lbtn"])) {
 4 |     $yname = $_POST["yname"];
 5 |     $ymail = $_POST["ymail"];
 6 |     $ygndr = $_POST["gndr"] ?? null;
 7 | 
 8 | 
 9 |     if (empty($yname)) {
10 |         $errname = "<span>Please Write Your Name </span>";
11 |     } elseif (!preg_match("/^[A-Za-z. ]*$/", $yname)) {
12 |         $errname = "<span style='color:red'>Invalid name format</span>";
13 |     } else {
14 |         $crrname = $yname;
15 |     }
16 |     if (empty($ymail)) {
17 |         $erremail = "<span>Please Write Your Email </span>";
18 |     } elseif (!filter_var($ymail, FILTER_VALIDATE_EMAIL)) {
19 |         $erremail = "<span style='color:red'>Invalid Email Adress</span>";
20 |     } else {
21 |         $crremail = $ymail;
22 |     }
23 |     if (empty($ygndr)) {
24 |         $errgndr = "<span>Please Select Your Gender </span>";
25 |     } else {
26 |         $crrgndr = $ygndr;
27 |     }
28 | }
29 | 
30 | ?>
31 | 
32 | <form action="" method="post">
33 |     <input type="text" placeholder="Your Name" name="yname"> <?= $errname ?? null ?>
34 |     <br><br>
35 |     <input type="text" placeholder="Your Email" name="ymail"> <?= $erremail ?? null ?>
36 |     <br><br>
37 |     Gender :
38 |     <input type="radio" name="gndr" value="Male">Male
39 |     <input type="radio" name="gndr" value="Female">Female
40 |     <input type="radio" name="gndr" value="Other">Other
41 |     <?= $errgndr ?? null ?>
42 |     <br><br>
43 |     <button type="submit" name="lbtn">Log in</button>
44 | </form>


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/quries.txt:
--------------------------------------------------------------------------------
 1 | database
 2 | create
 3 | read
 4 | update
 5 | Delete
 6 | 
 7 | table
 8 | create
 9 | read
10 | update
11 | Delete
12 | 
13 | column
14 | create
15 | read
16 | update
17 | Delete
18 | 
19 | SELECT * FROM `users`
20 | SELECT `user name` FROM `users`;
21 | SELECT `user name`, `gender` FROM `users`;
22 | SELECT `users`.`user name`, `users`.`gender` FROM `users`;
23 | SELECT `users`.`user name` AS `Person Name`, `users`.`gender` AS `Person Gender` FROM `users`;
24 | SELECT `users`.`user name` AS `Person Name`, `users`.`gender` AS `Person Gender` FROM `users` WHERE `users`.`id` = 1;
25 | INSERT INTO `users`(`user name`, `address`, `gender`) VALUES ('Asif Abir', 'Dhaka', 'Male')
26 | UPDATE `users` SET `role`='admin' WHERE `id` = 3
27 | DELETE FROM `users` WHERE `id` = 3
28 | 
29 | CREATE TABLE `access` (
30 |     `id` int(11) PRIMARY KEY AUTO_INCREMENT,
31 |     `name` char(100),
32 |     `user_id` int(11),
33 |     `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
34 |     FOREIGN KEY (`user_id`) REFERENCES `users` (`id`)
35 | )
36 | 
37 | INSERT INTO `access`(`access_name`, `user_id`) VALUES 
38 | ('User List', 1), 
39 | ('User List', 2),
40 | ('Change Password', 1),
41 | ('Change Password', 2),
42 | ('Change Password', 4)
43 | 
44 | ALTER TABLE `access` CHANGE `name` `access_name` CHAR(100)
45 | ALTER TABLE `access` ADD `testings` VARCHAR(100) AFTER `user_id`
46 | ALTER TABLE `access` DROP COLUMN `testings`
47 | 
48 | SELECT `users`.`user name` AS `Name`, `users`.`address` AS `Area`, 
49 | `users`.`gender` AS `Gender`, `users`.`role` AS `Power`, 
50 | `access`.`access_name` AS `Access Area` FROM `users` 
51 | INNER JOIN `access` 
52 | ON `access`.`user_id` = `users`.`id` 
53 | WHERE `users`.`user name` = 'Nadim' 
54 | ORDER BY `users`.`id` DESC;
55 | 


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/l8-function.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | function greetings($g = "Assalamuwalaikum", $p = "Vai", $m = "Mr.")
 3 | {
 4 |     if ($m == "Mr.") {
 5 |         echo "$g $p (Gender: Male)";
 6 |         echo "<br>";
 7 |     } elseif ($m == "Miss") {
 8 |         echo "$g $p (Gender: Female)";
 9 |         echo "<br>";
10 |     } elseif ($m == "Mrs.") {
11 |         echo "$g $p (Gender: Female)";
12 |         echo "<br>";
13 |     } else {
14 |         echo "$g $p (Gender: Tiktoker)";
15 |         echo "<br>";
16 |     }
17 | }
18 | 
19 | greetings("Hi", "Brother", "Mr.");
20 | greetings("Hello", "Sister", "Miss");
21 | greetings();
22 | greetings("Oyastagfilrullah");
23 | greetings(p: "bon", m: "Mrs.");
24 | greetings(p: "beyain", g: "Hi", m: "ha ha");
25 | 
26 | function namta($n, $l)
27 | {
28 |     for ($i = 1; $i <= $l; $i++) {
29 |         echo "$n x $i = " . ($n * $i) . "<br>";
30 |     }
31 | }
32 | 
33 | namta(369, 10);
34 | 
35 | //return
36 | function course($age = 18)
37 | {
38 |     if ($age >= 18) {
39 |         return "Welcome to our course.<br>";
40 |     }
41 |     return "Sorry you are not allowed to our course.<br>";
42 | }
43 | 
44 | echo course(13);
45 | 
46 | echo gettype([1, 2]) . "<br>";
47 | 
48 | function f2c($d)
49 | {
50 |     if (gettype($d) !== "integer") {
51 |         return "Please provide a number<br>";
52 |     }
53 |     return (($d - 32) * 5 / 9) . "<br>";
54 | }
55 | 
56 | echo f2c("ha ha ha");
57 | echo f2c(104);
58 | 
59 | // function will take 3 peram
60 | // day / hour / min
61 | // function wil find the second
62 | 
63 | function t2s($d = null, $h = null, $m = null)
64 | {
65 |     if (empty($d) || empty($h) || empty($m)) {
66 |         return "Please provide all the information";
67 |     } else {
68 |         if (gettype($d) !== "integer" || gettype($h) !== "integer" || gettype($m) !== "integer") {
69 |             return "Please dont provide invalid data";
70 |         }
71 |     }
72 | 
73 |     $d2s = $d * 86400;
74 |     $h2s = $h * 3600;
75 |     $m2s = $m * 60;
76 |     return $tSec = $d2s + $h2s + $m2s;
77 | }
78 | 
79 | echo t2s(2, 5, 7);
80 | 


--------------------------------------------------------------------------------
/crud/nav.php:
--------------------------------------------------------------------------------
 1 | <nav class="navbar navbar-expand-lg bg-dark navbar-dark">
 2 |     <div class="container-fluid">
 3 |         <a class="navbar-brand" href="./">CRUD</a>
 4 |         <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
 5 |             <span class="navbar-toggler-icon"></span>
 6 |         </button>
 7 |         <div class="collapse navbar-collapse" id="navbarSupportedContent">
 8 |             <ul class="navbar-nav ms-auto mb-2 mb-lg-0">
 9 |                 <li class="nav-item">
10 |                     <a class="nav-link <?= $pageName == "index" ? "active" : null ?>" aria-current="page" href="./">Home</a>
11 |                 </li>
12 |                 <?php if (!isset($_SESSION['user'])) { ?>
13 |                     <li class="nav-item">
14 |                         <a class="nav-link <?= $pageName == "signin" ? "active" : null ?>" href="./signin">Sign in</a>
15 |                     </li>
16 |                     <li class="nav-item">
17 |                         <a class="nav-link <?= $pageName == "signup" ? "active" : null ?>" href="./signup">Sign up</a>
18 |                     </li>
19 |                 <?php } else {  ?>
20 |                     <li class="nav-item dropdown">
21 |                         <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
22 |                             <?= $_SESSION['user']['name'] ?>
23 |                         </a>
24 |                         <ul class="dropdown-menu">
25 |                             <li><a class="dropdown-item" href="./updateProfile">Update Profile</a></li>
26 |                             <li><a class="dropdown-item" href="./changePass">Change Password</a></li>
27 |                             <li>
28 |                                 <hr class="dropdown-divider">
29 |                             </li>
30 |                             <li><a class="dropdown-item" href="./logout">Logout</a></li>
31 |                         </ul>
32 |                     </li>
33 |                 <?php } ?>
34 |             </ul>
35 |         </div>
36 |     </div>
37 | </nav>


--------------------------------------------------------------------------------
/crud/header.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | session_start();
 3 | $conn = mysqli_connect("localhost", "root", "", "b79m");
 4 | function safeThat($data)
 5 | {
 6 |     $data = htmlspecialchars($data);
 7 |     $data = trim($data);
 8 |     $data = stripslashes($data);
 9 |     return $data;
10 | }
11 | $pageName = pathinfo($_SERVER['PHP_SELF'], PATHINFO_FILENAME);
12 | ?>
13 | 
14 | <!DOCTYPE html>
15 | <html lang="en">
16 | 
17 | <head>
18 |     <meta charset="UTF-8">
19 |     <meta name="viewport" content="width=device-width, initial-scale=1.0">
20 |     <title>Document</title>
21 |     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.0/css/bootstrap.min.css" integrity="sha512-t4GWSVZO1eC8BM339Xd7Uphw5s17a86tIZIj8qRxhnKub6WoyhnrxeCIMeAqBPgdZGlCcG2PrZjMc+Wr78+5Xg==" crossorigin="anonymous" referrerpolicy="no-referrer" />
22 |     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css" integrity="sha512-iecdLmaskl7CVkqkXNQ/ZH/XLlvWZOJyj7Yy7tcenmpD1ypASozpmT/E0iPtmFIB46ZmdtAc9eNBvH0H/ZpiBw==" crossorigin="anonymous" referrerpolicy="no-referrer" />
23 |     <link rel="preconnect" href="https://fonts.googleapis.com">
24 |     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
25 |     <link href="https://fonts.googleapis.com/css2?family=Oswald:wght@300;400;500;700&display=swap" rel="stylesheet">
26 |     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/2.1.4/toastr.min.css" integrity="sha512-6S2HWzVFxruDlZxI3sXOZZ4/eJ8AcxkQH1+JjSe/ONCEqR9L4Ysq5JdT5ipqtzU7WHalNwzwBv+iE51gNHJNqQ==" crossorigin="anonymous" referrerpolicy="no-referrer" />
27 |     <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.0/jquery.min.js" integrity="sha512-3gJwYpMe3QewGELv8k/BX9vcqhryRdzRMxVfq6ngyWXwo03GFEzjsUm8Q7RZcHPHksttq7/GFoxjCVUjkjvPdw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
28 |     <script src="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/2.1.4/toastr.min.js" integrity="sha512-lbwH47l/tPXJYG9AcFNoJaTMhGvYWhVM9YI43CT+uteTRRaiLCui8snIgyAN8XWgNjNhCqlAUdzZptso6OCoFQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
29 |     <script>
30 |         toastr.options.progressBar = true;
31 |         toastr.options.positionClass = "toast-bottom-right";
32 |     </script>
33 |     <style>
34 |         * {
35 |             font-family: 'Oswald', sans-serif;
36 |         }
37 |     </style>
38 | </head>
39 | 
40 | <body>
41 |     <div class="container">
42 |         <div class="row">
43 |             <?php include_once("./nav.php") ?>
44 |         </div>


--------------------------------------------------------------------------------
/crud/signin.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | include_once("./header.php");
 3 | isset($_SESSION['user']) ? header("location: ./") : null;
 4 | if (isset($_POST['reg123'])) {
 5 |     $email = safeThat($_POST['email']);
 6 |     $password = safeThat($_POST['password']);
 7 | 
 8 |     if (empty($email)) {
 9 |         $errEmail = "Please provide your name";
10 |     } elseif (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
11 |         $errEmail = "Invalid email Address";
12 |     } else {
13 |         $crrEmail = $email;
14 |     }
15 | 
16 |     if (empty($password)) {
17 |         $errPass = "Please provide your name";
18 |     } elseif (!preg_match('/^(?=.*[A-Z])(?=.*[a-z])(?=.*\d)(?=.*[^\w\s]).{8,}$/', $password)) {
19 |         $errPass = "Please provide an strong password";
20 |     } else {
21 |         $crrPass = $conn->real_escape_string($password);
22 |     }
23 | 
24 | 
25 |     if (isset($crrEmail) && isset($crrPass)) {
26 |         // $encPass = password_hash($crrCpass, PASSWORD_BCRYPT);
27 |         $checkemail = $conn->query("SELECT * FROM `users` WHERE `email` = '$crrEmail'");
28 |         if ($checkemail->num_rows !== 1) {
29 |             echo "<script>toastr.warning('Email or password error!')</script>";
30 |         } else {
31 |             $uEmail = $checkemail->fetch_object();
32 |             if (!password_verify($crrPass, $uEmail->pass)) {
33 |                 echo "<script>toastr.warning('Email or password error!')</script>";
34 |             } else {
35 |                 $_SESSION['user'] = ["name" => $uEmail->name, "email" => $crrEmail];
36 |                 echo "<script>toastr.success('Login Successfull!');setTimeout(()=>location.reload(),2000)</script>";
37 |             }
38 |         }
39 |     }
40 | }
41 | ?>
42 | <div class="row">
43 |     <div class="col-md-5 m-auto my-3 border rounded shadow p-5">
44 |         <h3 class="mb-3">Sign-in Form</h3>
45 |         <form action="" method="post">
46 |             <div class="mb-3 form-floating">
47 |                 <input type="email" class="form-control <?= isset($errEmail) ? "is-invalid" : null ?>" name="email" placeholder="Enter your email" value="<?= $email ?? null ?>">
48 |                 <label>Enter your email</label>
49 |                 <div class="invalid-feedback">
50 |                     <?= $errEmail ?? null ?>
51 |                 </div>
52 |             </div>
53 |             <div class="mb-3 form-floating">
54 |                 <input type="password" class="form-control <?= isset($errPass) ? "is-invalid" : null ?>" name="password" placeholder="Enter your password" value="<?= $password ?? null ?>">
55 |                 <label>Enter your password</label>
56 |                 <div class="invalid-feedback">
57 |                     <?= $errPass ?? null ?>
58 |                 </div>
59 |             </div>
60 |             <button type="submit" class="btn btn-primary" name="reg123">Submit</button>
61 |         </form>
62 |     </div>
63 | </div>
64 | <?php
65 | include_once("./footer.php");
66 | ?>


--------------------------------------------------------------------------------
/crud/updateProfile.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | include_once("./header.php");
 3 | 
 4 | if (isset($_POST['reg123'])) {
 5 |     $crrEmail = $_SESSION['user']['email'];
 6 | 
 7 |     $name = safeThat($_POST['name']);
 8 |     $email = safeThat($_POST['email']);
 9 | 
10 |     // Validate name
11 |     if (empty($name)) {
12 |         $errName = "Please enter your name";
13 |     } elseif (!preg_match("/^[A-Za-z. ]*$/", $name)) {
14 |         $errName = "Invalid name";
15 |     }
16 | 
17 |     // Validate email
18 |     if (empty($email)) {
19 |         $errEmail = "Please enter your email";
20 |     } elseif (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
21 |         $errEmail = "Invalid email address";
22 |     } else {
23 |         // Check if the new email already exists in the database
24 |         $checkEmail = $conn->query("SELECT * FROM `users` WHERE `email` = '$email'");
25 |         if ($checkEmail->num_rows > 0 && $email !== $crrEmail) {
26 |             $errEmail = "Email address is already in use";
27 |         }
28 |     }
29 | 
30 |     if (isset($errName) || isset($errEmail)) {
31 |         echo "<script>toastr.warning('Please check the data accordingly!')</script>";
32 |     } else {
33 |         // Perform the database update query here
34 |         $updateQuery = $conn->query("UPDATE `users` SET `name` = '$name', `email` = '$email' WHERE `email` = '$crrEmail'");
35 | 
36 |         if (!$updateQuery) {
37 |             echo "<script>toastr.warning('Database problem!')</script>";
38 |         } else {
39 |             // Update the session variables with the new values
40 |             $_SESSION['user']['name'] = $name;
41 |             $_SESSION['user']['email'] = $email;
42 |             echo "<script>toastr.success('Name and email updated successfully!')</script>";
43 |         }
44 |     }
45 | }
46 | 
47 | ?>
48 | <div class="row">
49 |     <div class="col-md-5 m-auto my-3 border rounded shadow p-5">
50 |         <h3 class="mb-3">Update Form</h3>
51 |         <form action="" method="post">
52 |             <div class="mb-3 form-floating">
53 |                 <input type="text" class="form-control <?= isset($errName) ? "is-invalid" : null ?>" name="name" placeholder="Enter your name" value="<?= $_SESSION['user']['name'] ?? null ?>">
54 |                 <label>Name</label>
55 |                 <div class="invalid-feedback">
56 |                     <?= $errName ?? null ?>
57 |                 </div>
58 |             </div>
59 |             <div class="mb-3 form-floating">
60 |                 <input type="email" class="form-control <?= isset($errEmail) ? "is-invalid" : null ?>" name="email" placeholder="Enter your email" value="<?= $_SESSION['user']['email'] ?? null ?>">
61 |                 <label>Email</label>
62 |                 <div class="invalid-feedback">
63 |                     <?= $errEmail ?? null ?>
64 |                 </div>
65 |             </div>
66 | 
67 | 
68 |             <button type="submit" class="btn btn-primary" name="reg123">Submit</button>
69 |         </form>
70 |     </div>
71 | </div>
72 | <?php
73 | include_once("./footer.php");
74 | ?>


--------------------------------------------------------------------------------
/crud/changePass.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | include_once("./header.php");
 3 | if (isset($_POST['reg123'])) {
 4 |     $crrEmail = $_SESSION['user']['email'];
 5 | 
 6 |     $old_password = safeThat($_POST['old_password']);
 7 |     $new_password = safeThat($_POST['new_password']);
 8 |     $confirm_password = safeThat($_POST['confirm_password']);
 9 | 
10 |     $checkOldPass = $conn->query("SELECT * FROM `users` WHERE `email` = '$crrEmail'");
11 |     if ($checkOldPass->num_rows !== 1 || !password_verify($old_password, $checkOldPass->fetch_object()->pass)) {
12 |         $errOldPass = "Incorrect old password";
13 |     }
14 | 
15 |     if (empty($new_password)) {
16 |         $errNewPass = "Please enter your new password";
17 |     } elseif (!preg_match('/^(?=.*[A-Z])(?=.*[a-z])(?=.*\d)(?=.*[^\w\s]).{8,}$/', $new_password)) {
18 |         $errNewPass = "Please provide a strong password";
19 |     }
20 | 
21 |     if (empty($confirm_password)) {
22 |         $errConfirmPass = "Please confirm your new password";
23 |     } elseif ($new_password !== $confirm_password) {
24 |         $errConfirmPass = "Passwords do not match";
25 |     }
26 | 
27 |     if (isset($errOldPass) || isset($errNewPass) || isset($errConfirmPass)) {
28 |         echo "<script>toastr.warning('Please check the data accordingly!')</script>";
29 |     } else {
30 |         $hashed_password = password_hash($new_password, PASSWORD_BCRYPT);
31 |         $updateQuery = $conn->query("UPDATE `users` SET `pass` = '$hashed_password' WHERE `email` = '$crrEmail'");
32 | 
33 |         if (!$updateQuery) {
34 |             echo "<script>toastr.warning('Database problem!')</script>";
35 |         } else {
36 |             echo "<script>toastr.success('Password changes successfully!')</script>";
37 |         }
38 |     }
39 | }
40 | 
41 | 
42 | ?>
43 | <div class="row">
44 |     <div class="col-md-5 m-auto my-3 border rounded shadow p-5">
45 |         <h3 class="mb-3">Sign-in Form</h3>
46 |         <form action="" method="post">
47 |             <div class="mb-3 form-floating">
48 |                 <input type="password" class="form-control <?= isset($errPass) ? "is-invalid" : null ?>" name="old_password" placeholder="Enter your old password" value="<?= $old_password ?? null ?>">
49 |                 <label>Old Password</label>
50 |                 <div class="invalid-feedback">
51 |                     <?= $errPass ?? null ?>
52 |                 </div>
53 |             </div>
54 |             <div class="mb-3 form-floating">
55 |                 <input type="password" class="form-control <?= isset($errNewPass) ? "is-invalid" : null ?>" name="new_password" placeholder="Enter your new password" value="<?= $new_password ?? null ?>">
56 |                 <label>New Password</label>
57 |                 <div class="invalid-feedback">
58 |                     <?= $errNewPass ?? null ?>
59 |                 </div>
60 |             </div>
61 |             <div class="mb-3 form-floating">
62 |                 <input type="password" class="form-control <?= isset($errConfirmPass) ? "is-invalid" : null ?>" name="confirm_password" placeholder="Confirm your new password" value="<?= $confirm_password ?? null ?>">
63 |                 <label>Confirm New Password</label>
64 |                 <div class="invalid-feedback">
65 |                     <?= $errConfirmPass ?? null ?>
66 |                 </div>
67 |             </div>
68 | 
69 |             <button type="submit" class="btn btn-primary" name="reg123">Submit</button>
70 |         </form>
71 |     </div>
72 | </div>
73 | <?php
74 | include_once("./footer.php");
75 | ?>


--------------------------------------------------------------------------------
/l12-form-validation.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | 
 3 | $countries = ["", "Bangladesh", "India", "Pakistan", "USA", "Rusia", "Others"];
 4 | 
 5 | if (isset($_POST['lbtn'])) {
 6 |     $yname = $_POST['yname'];
 7 |     $yemail = $_POST['yemail'];
 8 |     $gndr = $_POST['gndr'] ?? null;
 9 |     $skill = $_POST['skill'] ?? null;
10 |     $ycountry = $_POST['ycountry'];
11 | 
12 |     if (empty($yname)) {
13 |         $errName = "<span style='color:red'>please write your name</span>";
14 |     } elseif (!preg_match("/^[A-Za-z. ]*$/", $yname)) {
15 |         $errName = "<span style='color:red'>Invalid name format</span>";
16 |     } else {
17 |         $crrYname = $yname;
18 |     }
19 | 
20 |     if (empty($yemail)) {
21 |         $errEmail = "<span style='color:red'>please write your email</span>";
22 |     } elseif (!filter_var($yemail, FILTER_VALIDATE_EMAIL)) {
23 |         $errEmail = "<span style='color:red'>Invalid email address</span>";
24 |     } else {
25 |         $crrYemail = $yemail;
26 |     }
27 | 
28 |     if (empty($gndr)) {
29 |         $errGndr = "<span style='color:red'>please select your gender</span>";
30 |     } else {
31 |         $crrGndr = $gndr;
32 |     }
33 | 
34 |     if (empty($skill)) {
35 |         $errSkill = "<span style='color:red'>please select your skills</span>";
36 |     } else {
37 |         $crrSkill = $skill;
38 |     }
39 | 
40 |     if (empty($ycountry)) {
41 |         $errYcountry = "<span style='color:red'>please select your ocuntry</span>";
42 |     } else {
43 |         $crrYcountry = $ycountry;
44 |     }
45 | 
46 |     if (isset($crrYname) && isset($crrYemail) && isset($crrGndr) && isset($crrSkill) && isset($crrYcountry)) {
47 |         $skills = implode(", ", $crrSkill);
48 |         $msg = "
49 |             <div style='color: green'>You Name: $crrYname</div>
50 |             <div style='color: green'>You Email: $crrYemail</div>
51 |             <div style='color: green'>You Gender: $crrGndr</div>
52 |             <div style='color: green'>You Skills: $skills</div>
53 |             <div style='color: green'>You Country: $crrYcountry</div>
54 |         ";
55 |         $yname = $yemail = $gndr = $skill = $ycountry = null;
56 |     }
57 | }
58 | ?>
59 | 
60 | <form action="" method="post">
61 |     <input type="text" placeholder="Your Name" name="yname" value="<?= $yname ?? null ?>">
62 |     <?= $errName ?? null ?>
63 |     <br><br>
64 |     <input type="text" placeholder="Your Email" name="yemail" value="<?= $yemail ?? null ?>">
65 |     <?= $errEmail ?? null ?>
66 |     <br><br>
67 |     Gender :
68 |     <input type="radio" name="gndr" value="Male" <?= isset($gndr) && $gndr == "Male" ? "checked" : null ?>>Male
69 |     <input type="radio" name="gndr" value="Female" <?= isset($gndr) && $gndr == "Female" ? "checked" : null ?>>Female
70 |     <?= $errGndr ?? null ?>
71 |     <br><br>
72 |     Skills:
73 |     <input type="checkbox" value="HTML" name="skill[]" <?= isset($skill) && in_array("HTML", $skill) ?  "checked" : null ?>>HTML
74 |     <input type="checkbox" value="CSS" name="skill[]" <?= isset($skill) && in_array("CSS", $skill) ?  "checked" : null ?>>CSS
75 |     <input type="checkbox" value="Bootstrap" name="skill[]" <?= isset($skill) && in_array("Bootstrap", $skill) ?  "checked" : null ?>>Bootstrap
76 |     <input type="checkbox" value="JS" name="skill[]" <?= isset($skill) && in_array("JS", $skill) ?  "checked" : null ?>>JS
77 |     <input type="checkbox" value="jQuery" name="skill[]" <?= isset($skill) && in_array("jQuery", $skill) ?  "checked" : null ?>>jQuery
78 |     <input type="checkbox" value="React" name="skill[]" <?= isset($skill) && in_array("React", $skill) ?  "checked" : null ?>>React
79 |     <?= $errSkill ?? null ?>
80 |     <br><br>
81 |     <select name="ycountry">
82 |         <?php foreach ($countries as $country) { ?>
83 |             <option value="<?= $country ?>" <?= isset($ycountry) && $ycountry == $country ? "selected" : null ?>><?= empty($country) ? "--Select Country--" : $country ?></option>
84 |         <?php } ?>
85 |     </select>
86 |     <?= $errYcountry ?? null ?>
87 |     <br><br>
88 |     <button type=" submit" name="lbtn">Log in</button>
89 | </form>
90 | 
91 | <?= $msg ?? null; ?>


--------------------------------------------------------------------------------
/crud/signup.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | include_once("./header.php");
  3 | isset($_SESSION['user']) ? header("location: ./") : null;
  4 | if (isset($_POST['reg123'])) {
  5 |     $name = safeThat($_POST['name']);
  6 |     $email = safeThat($_POST['email']);
  7 |     $password = safeThat($_POST['password']);
  8 |     $cpassword = safeThat($_POST['confirm_password']);
  9 | 
 10 |     if (empty($name)) {
 11 |         $errName = "Please provide your name";
 12 |     } elseif (!preg_match("/^[A-Za-z. ]*$/", $name)) {
 13 |         $errName = "Invalid name";
 14 |     } else {
 15 |         $crrName = $conn->real_escape_string($name);
 16 |     }
 17 | 
 18 |     if (empty($email)) {
 19 |         $errEmail = "Please provide your name";
 20 |     } elseif (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
 21 |         $errEmail = "Invalid email Address";
 22 |     } else {
 23 |         $email = $conn->real_escape_string($email);
 24 |         $checkEmail = $conn->query("SELECT * FROM `users` WHERE `email` = '$email'");
 25 |         if ($checkEmail->num_rows > 0) {
 26 |             $errEmail = "Email already exicts";
 27 |         } else {
 28 |             $crrEmail = $email;
 29 |         }
 30 |     }
 31 | 
 32 |     if (empty($password)) {
 33 |         $errPass = "Please provide your name";
 34 |     } elseif (!preg_match('/^(?=.*[A-Z])(?=.*[a-z])(?=.*\d)(?=.*[^\w\s]).{8,}$/', $password)) {
 35 |         $errPass = "Please provide an strong password";
 36 |     } else {
 37 |         $crrPass = $conn->real_escape_string($password);
 38 |     }
 39 | 
 40 |     if (empty($cpassword)) {
 41 |         $errCpass = "Please confirm your name";
 42 |     } elseif (!preg_match('/^(?=.*[A-Z])(?=.*[a-z])(?=.*\d)(?=.*[^\w\s]).{8,}$/', $cpassword)) {
 43 |         $errCpass = "Please provide an strong password";
 44 |     } elseif ($password !== $cpassword) {
 45 |         $errCpass = "Password didnot matched";
 46 |     } else {
 47 |         $crrCpass = $conn->real_escape_string($cpassword);
 48 |     }
 49 | 
 50 |     if (isset($crrName) && isset($crrEmail) && isset($crrPass) && isset($crrCpass)) {
 51 |         $encPass = password_hash($crrCpass, PASSWORD_BCRYPT);
 52 |         $insert = $conn->query("INSERT INTO `users` (`name`, `email`, `pass`) VALUES ('$crrName', '$crrEmail', '$encPass')");
 53 |         if (!$insert) {
 54 |             echo "<script>toastr.warning('Something went wrong!')</script>";
 55 |         } else {
 56 |             $_SESSION['user'] = ["name" => $crrName, "email" => $crrEmail];
 57 |             echo "<script>toastr.success('Sign up Completed');setTimeout(()=>location.reload(),2000)</script>";
 58 |         }
 59 |     }
 60 | }
 61 | ?>
 62 | <div class="row">
 63 |     <div class="col-md-5 m-auto my-3 border rounded shadow p-5">
 64 |         <h3 class="mb-3">Sign-up Form</h3>
 65 |         <form action="" method="post">
 66 |             <div class="mb-3 form-floating">
 67 |                 <input type="text" class="form-control <?= isset($errName) ? "is-invalid" : null ?>" name="name" placeholder="Enter your name" value="<?= $name ?? null ?>">
 68 |                 <label>Enter your name</label>
 69 |                 <div class="invalid-feedback">
 70 |                     <?= $errName ?? null ?>
 71 |                 </div>
 72 |             </div>
 73 |             <div class="mb-3 form-floating">
 74 |                 <input type="email" class="form-control <?= isset($errEmail) ? "is-invalid" : null ?>" name="email" placeholder="Enter your email" value="<?= $email ?? null ?>">
 75 |                 <label>Enter your email</label>
 76 |                 <div class="invalid-feedback">
 77 |                     <?= $errEmail ?? null ?>
 78 |                 </div>
 79 |             </div>
 80 |             <div class="mb-3 form-floating">
 81 |                 <input type="password" class="form-control <?= isset($errPass) ? "is-invalid" : null ?>" name="password" placeholder="Enter your password" value="<?= $password ?? null ?>">
 82 |                 <label>Enter your password</label>
 83 |                 <div class="invalid-feedback">
 84 |                     <?= $errPass ?? null ?>
 85 |                 </div>
 86 |             </div>
 87 |             <div class="mb-3 form-floating">
 88 |                 <input type="password" class="form-control <?= isset($errCpass) ? "is-invalid" : null ?>" name="confirm_password" placeholder="Confirm your password" value="<?= $cpassword ?? null ?>">
 89 |                 <label>Confirm your password</label>
 90 |                 <div class="invalid-feedback">
 91 |                     <?= $errCpass ?? null ?>
 92 |                 </div>
 93 |             </div>
 94 |             <button type="submit" class="btn btn-primary" name="reg123">Submit</button>
 95 |         </form>
 96 |     </div>
 97 | </div>
 98 | <?php
 99 | include_once("./footer.php");
100 | ?>


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