PHP Foreach Loop Example

Iterate over arrays and their keys with foreach. Edit the code below and press Run to execute it with real PHP in your browser.

Code Editor

<?php
$fruits = ["Apple", "Banana", "Cherry"];

foreach ($fruits as $fruit) {
    echo "$fruit\n";
}

// With keys
$person = ["name" => "John", "age" => 30, "city" => "New York"];
foreach ($person as $key => $value) {
    echo "$key: $value\n";
}

Output

Apple
Banana
Cherry
name: John
age: 30
city: New York

How this foreach loop example works

foreach is the standard way to loop over arrays. foreach ($array as $value) gives each value; foreach ($array as $key => $value) also gives the key, which is essential for associative arrays.

Modify elements by reference

Prefix the value with & to change the original array. Always unset() the reference afterwards to avoid surprising bugs in later loops.

<?php
$prices = [10, 20, 30];
foreach ($prices as &$price) {
    $price *= 2;
}
unset($price);
echo implode(", ", $prices);

Output:

20, 40, 60