The foreach loop in PHP is used to iterate over arrays and objects easily. It allows you to access each element’s value, and optionally its key, without using a counter. This makes it ideal for working with both indexed and associative arrays. The syntax is simple and improves code readability. It is one of the most commonly used loops in PHP for handling data collections.
Basic Syntax:
foreach ($array as $value) {
// Code to run for each value
}
Example 1: Loop through indexed array
File name: colors.php
<?php
$colors = ['Red', 'Green', 'Blue'];
foreach ($colors as $color) {
echo $color . "
";
}
?>
Output:
Red
Green
Blue
Example 2: Loop through associative array
File name: index.php
<?php
$user = [
'name' => 'John',
'age' => 25,
'email' => 'john@example.com'
];
foreach ($user as $key => $value) {
echo "$key: $value
";
}
?>
Output:
name: John
age: 25
email: john@example.com
Summary
| Use Case | Syntax Example |
|---|---|
| Loop values only | foreach ($arr as $value) |
| Loop keys + values | foreach ($arr as $key => $value) |
