├── b73.zip
├── crud-2.zip
├── echo-print.php
├── constant.php
├── veriable.php
├── comments.php
├── string-functions.php
├── loop.php
├── function.php
├── data-types.php
├── date.php
├── operator.php
├── array.php
└── condition.php


/b73.zip:
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https://raw.githubusercontent.com/asif-daffodil/b73php/HEAD/b73.zip


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/crud-2.zip:
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https://raw.githubusercontent.com/asif-daffodil/b73php/HEAD/crud-2.zip


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/echo-print.php:
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1 | <h1>This is a demo text</h1>
2 | <?php  
3 |  echo "<h2>This is another demo text</h2>","Hmmm<br>";
4 |  print "Hello world";
5 | ?>


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/constant.php:
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1 | <?php  
2 |     // $x = 15;
3 |     // $x = 16;
4 |     // echo $x;
5 | 
6 |     define('xyz','Dhaka is the capital of Bangladesh');
7 |     echo(xyz);
8 | ?>


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/veriable.php:
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 1 | <?php  
 2 |     $name = "Asif Abir";
 3 |     echo $name;
 4 |     /*
 5 |     * $name
 6 |     * $_name
 7 |     * $na_me
 8 |     * $name123
 9 |     * $x
10 |     * $123x -> we cant use number at the beginning of a veriable name
11 |     */
12 | ?>


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/comments.php:
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 1 | <?php  
 2 |     // single line comment
 3 |     "eta kintu comment hobena";
 4 |     # this is also a single line comment
 5 |     "etao kintu comment na";
 6 | 
 7 |     /* 
 8 |         this is a
 9 |         multiline 
10 |         comment
11 |         _______
12 |     */
13 |     /*
14 |      * this is line one
15 |      * this is line two
16 |      * this is line three
17 |      */
18 | ?>


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/string-functions.php:
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 1 | <?php  
 2 |     $x = "Dhaka is the capital of Bangladesh";
 3 |     echo strlen($x)."<br>";
 4 | 
 5 |     $y = "My name is Asif";
 6 |     $z = "My name is Asif";
 7 |     echo substr($y, 0, 7)."<br>";
 8 |     echo substr($y, -4)."<br>";
 9 |     echo str_replace('Asif', 'Abir', $z)."<br>";
10 |     echo str_word_count($z)."<br>";
11 |     echo strrev($z)."<br>";
12 |     echo strpos($z, 'Asif');
13 | ?>


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/loop.php:
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 1 | <?php  
 2 |     $x = 1;
 3 |     $n = 2;
 4 |     while ($x <= 10) {
 5 |         echo $n." x ".$x." = ".$n*$x."<br>";
 6 |         $x++;
 7 |     }
 8 | 
 9 |     $y = 15;
10 |      do{
11 |        echo $y."<br>";
12 |        $y++;
13 |     }while ($y <= 10);
14 | 
15 |     for ($i=0; $i <= 100; $i += 2) {
16 |         if ($i != 100) {
17 |             $jojon = ", ";
18 |         } else {
19 |             $jojon = null;
20 |         }
21 |         echo $i.$jojon;
22 |     }
23 | 
24 | ?>


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/function.php:
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 1 | <?php
 2 |     $x = "Dhaka";
 3 |     function myFunc ($city = "Washington DC", $country = "USA") {
 4 |         return "$city is the capital city of $country <br>";
 5 |     }
 6 | 
 7 |     echo myFunc ($x, "Bangladesh");
 8 |     echo myFunc ("Dilli", "India");
 9 |     echo myFunc ("Islamabad", "Pakistan");
10 |     echo myFunc ();
11 | 
12 |     function fname () {
13 |         return "Hashibur";
14 |     }
15 | 
16 |     function lname () {
17 |         return "Rahman";
18 |     }
19 | 
20 |     function fullName () {
21 |         return "Your full name is : ".fname()." ".lname()."<br>";
22 |     }
23 | 
24 |     echo fullName();
25 | ?>


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/data-types.php:
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 1 | <?php  
 2 |     // string
 3 |     $x = "This is a text";
 4 |     var_dump($x);
 5 |     echo "<br>";
 6 | 
 7 |     $x = 123;
 8 |     var_dump($x);
 9 |     echo "<br>";
10 | 
11 |     $x = 123.456;
12 |     var_dump($x);
13 |     echo "<br>";
14 | 
15 |     $x = true;
16 |     var_dump($x);
17 |     echo "<br>";
18 | 
19 |     $x = ['Kamal', 'Dhaka', 25, true];
20 |     var_dump($x);
21 |     echo "<br>";
22 | 
23 |     $x = null;
24 |     var_dump($x);
25 |     echo "<br>";
26 | 
27 |     class myClass {
28 |         public $xyz = "Bangladesh";
29 |     }
30 | 
31 |     $x = new myClass;
32 |     var_dump($x);
33 |     echo "<br>";
34 | 
35 |     // Resouse
36 | ?>


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/date.php:
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 1 | <?php  
 2 |     echo date("d-m-y")."<br>";
 3 |     echo date("d-M-Y")."<br>";
 4 |     echo date("d-F-Y (D)")."<br>";
 5 |     echo date_default_timezone_get()."<br>";
 6 |     date_default_timezone_set('America/New_York');
 7 |     echo date("d-F-Y (l) h:i:s a")."<br>";
 8 |     echo date("d-F-Y (l) H:i:s A")."<br>";
 9 |     date_default_timezone_set('Asia/Dhaka');
10 |     echo date("d-F-Y (l) H:i:s A")."<br>";
11 | 
12 | 
13 |     //mktime
14 |     // hour min sec month day year
15 |     $myTime = mktime(14, 15, 16, 2, 10, 2025);
16 |     echo date("d-F-Y (l) H:i:s A", $myTime)."<br>";
17 | 
18 |     //strtotime
19 |     $hasibur = strtotime("-30 years +2month -7 days +5 hours +3 mins"); 
20 |     echo date("d-F-Y (l) H:i:s A", $hasibur)."<br><br>";
21 | 
22 |     $startDate = strtotime("next friday");
23 |     $endDate = strtotime("+6 weeks", $startDate);
24 |     while ($startDate <= $endDate) {
25 |         echo date("d-F-Y (l)", $startDate)."<br>";
26 |         $startDate = strtotime("+1 week", $startDate);
27 |     }
28 | ?>


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/operator.php:
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 1 | <?php  
 2 |     /* Arethmetic operator
 3 |      * +
 4 |      * -
 5 |      * *
 6 |      * /
 7 |      * %
 8 |      */
 9 | 
10 |     /* Assignment Operator
11 |      * =
12 |      * +=
13 |      * -=
14 |      * *=
15 |      * /=
16 |      * %=
17 |      */ 
18 | 
19 |     /* Concatination operator
20 |      * .
21 |      * .= 
22 |      */
23 |     
24 |     /* Comparison operation
25 |      * ==
26 |      * ===
27 |      * !=
28 |      * <
29 |      * >
30 |      * <=
31 |      * >=
32 |      * <>
33 |      * !==
34 |      */ 
35 | 
36 |     /* Conditional Operaotr
37 |      * &&
38 |      * ||
39 |      * and
40 |      * or
41 |      * xor
42 |      */
43 | 
44 |     $x = 15;
45 |     $y = "15";
46 |     $z = 16;
47 | 
48 |     // if ($x < $z xor $x == $y) {
49 |     //     echo "Hisibur Rahman";
50 |     // }else {
51 |     //     echo "Sheikh Hasina";
52 |     // }
53 |     $hasib = "Hasubur Rahman";
54 |     echo ($x < $z xor $x == $y)? "Hisibur Rahman":"Sheikh Hasina";
55 |     echo "<br>";    
56 |     echo $hasib ?? "Khirul Bashar Vai";
57 | ?>


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/array.php:
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 1 | <?php
 2 |     //indexed array
 3 |     $b_std = ['Hasibur', 24, 'Chandpur', true, "null"];
 4 |     echo $b_std[0]." ".$b_std[2];
 5 |     echo "<pre>";
 6 |     print_r($b_std);
 7 |     echo "</pre>";
 8 |     
 9 |     for ($i=0; $i < count($b_std); $i++) { 
10 |        echo $b_std[$i]."<br>";
11 |     }
12 | 
13 |     foreach ($b_std as $val) {
14 |         echo $val."<br>";
15 |     }
16 | 
17 |     //Associative array ( => )
18 |     $hkb = ['name'=>'Hasibur', 'age'=>24, 'city'=>'Chandpur', 'gender'=>'Male'];
19 |     echo $hkb['name'];
20 |     echo "<pre>";
21 |     print_r($hkb);
22 |     echo "</pre>";
23 |     foreach ($hkb as $pey => $data) {
24 |         echo $pey." : ".$data."<br>";
25 |     }
26 | 
27 |     //Multidimontional array
28 |     $hhh = [
29 |         ['Hasib', 'Chandpur', 'Male'],
30 |         ['Arup', 'Khulna', 'Male'],
31 |         ['Bithi', 'Josore', 'Female'],
32 |         ['Mukta', 'Madaripur', 'Female']
33 |     ];
34 |     echo $hhh[2][2];
35 |     echo "<pre>";
36 |     print_r($hhh);
37 |     echo "</pre>";
38 | 
39 |     for ($j=0; $j < count($hhh); $j++) { 
40 |         for ($k=0; $k < count($hhh[$j]); $k++) { 
41 |            echo $hhh[$j][$k]." ";
42 |         }
43 |         echo "<br>";
44 |     }
45 | 
46 |     foreach ($hhh as $value) {
47 |         foreach ($value as $values) {
48 |            echo $values." ";
49 |         }
50 |         echo "<br>";
51 |     }
52 | 
53 |     $hbk = [
54 |         ['Name'=>'Hasibur','Age'=>24,'City'=>'Chandpur'],
55 |         ['Name'=>'Bithi','Age'=>22,'City'=>'Josore'],
56 |         ['Name'=>'Arup','Age'=>16,'City'=>'Khulna'],
57 |         ['Name'=>'Mukta','Age'=>13,'City'=>'Madaripur'],
58 |         ['Name'=>'Jafrin','Age'=>12,'City'=>'Dhaka']
59 |     ];
60 |     echo "<pre>";
61 |     print_r($hbk);
62 |     echo "</pre>";
63 | 
64 |     foreach ($hbk as $hbks) {
65 |        foreach ($hbks as $key => $vals) {
66 |            echo $key." : ".$vals."<br>";
67 |        }
68 |        echo "<br>";
69 |     }
70 | ?>


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/condition.php:
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 1 | <?php  
 2 |     $age = 50;
 3 | 
 4 |     if ($age <= 12 && $age >= 0) {
 5 |         echo "You are a Baby";
 6 |     }elseif ($age <= 19 && $age > 12) {
 7 |         echo "You are a teenager";
 8 |     }elseif ($age <= 29 && $age > 19) {
 9 |         echo "You are a young man";
10 |     }elseif ($age <= 49 && $age > 29) {
11 |         echo "You are a middle-aged man";
12 |     }elseif ($age >= 50 && $age < 150) {
13 |         echo "You are an old man";
14 |     }else {
15 |         echo "You are not in this world";
16 |     }
17 | 
18 |     echo "<br>";
19 | 
20 |     switch ($age) {
21 |         case ($age <= 12 && $age >= 0):
22 |             echo "You are a Baby";
23 |             break;
24 | 
25 |         case ($age <= 19 && $age > 12):
26 |             echo "You are a teenager";
27 |             break;
28 |         
29 |         case ($age <= 29 && $age > 19):
30 |             echo "You are a young man";
31 |             break;
32 |         
33 |         case ($age <= 49 && $age > 29):
34 |             echo "You are a middle-aged man";
35 |             break;
36 | 
37 |         case ($age >= 50 && $age < 150):
38 |             echo "You are an old man";
39 |             break;
40 | 
41 |         default:
42 |             echo "You are not in this world";
43 |             break;
44 |     }
45 |     echo "<br>";
46 |     
47 |     $name = "Hasibur Rahman";
48 |     $age = 22;
49 |     $status = "Single";
50 |     $religion = "Islam";
51 |     $nationality = "Bangladeshi";
52 |     $homeTown = "Chandpur";
53 | 
54 |     if(!empty($name)){
55 |         if($age >= 18){
56 |             if ($status == "Single") {
57 |                if($religion != "ihudi"){
58 |                 if(isset($nationality)){
59 |                   if ($homeTown != "Noyakhali"){
60 |                     echo "Apnar Chakri Hobe";
61 |                   }else{
62 |                       echo "Apnar Chakri Hobei Hobe";
63 |                   }  
64 |                 }else{
65 |                     echo "eta jongle na";
66 |                 }
67 |                }else{
68 |                    echo "Bangladeshe israil er passport alowed na";
69 |                }
70 |             }else {
71 |                 echo "Married are not allowed here";
72 |             }
73 |         }else{
74 |             echo "Sorry babu, ekhane bacchader allow kora hoyna";
75 |         }
76 |     }else {
77 |         echo "Naam chara bektir chakri hoyna";
78 |     }
79 | ?>


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