PHP Control Structures ( If, Else, and Switch and loops) tutorial in Khmer

Hi all! today about PHP control structures with if, else, switch statement and loop (do while, while, for, and foreach) in PHP. It also cover PHP programming basics for new learners and friends who like PHP khmer. So, let's start.

If you want to learn more, please check our: [PHP Tutorial in Khmer Playlist].

1. Conditional statement in PHP

What is If, Else in PHP?

If statement is like decision maker, it check condition and if it true do something then Else, if condition false, you do other thing.

  <?php
  $number = 101; 

  if ($number > 0) {
      echo "Number is positive";
  } else {
      echo "Number is not positive";
  }
  ?>

What is Switch Statement?

When you have many conditions, you can use switch statement is more simple.

    <php
    $color = "red";  
    
    switch ($color) {
        case "red":
            echo "Color is red";
            break;
        case "blue":
            echo "Color is blue";
            break;
        default:
            echo "Color unknown";
    }
    ?>    

Video about IF, ELSE, and Switch statement in PHP in Khmer

Another video about IF ELSE vs Switch case in PHP Khmer

2. LOOPs in PHP

Loops consist of do while loop, while loop, for loop and foreach in php.

while loop in PHP

while loop check the condition first, and run code again and again when condition true. If condition false, loop stop.

    <php
    $x = 1;
    while ($x <= 10) {
        echo "Number: $x <br>";
        $x++;
    }   
    ?> 

do while in PHP

do while run code one first and again when condition true. If condition false, loop stop.

    <php
    $x = 6;
    do {
        echo "Number: $x <br>";
        $x++;
    } while ($x <= 5);  
    ?>

for loop in PHP

for loop run code as many time then condition is true.

    <php
    for ($x = 1; $x <= 5; $x++) {
        echo "Number: $x <br>";
    }
    ?>

Video about do while, while, for and foreach statement in PHP in Khmer

foreach in PHP

foreach loop best for array. It loop every item in array.

    <php
    $colors = ["red", "blue", "green"];
    foreach ($colors as $c) {
        echo "Color: {$c} <br>";
    }
    ?>

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