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Mastering foreach as PHP: The Complete Guide for Beginners and Experts

foreach as php — 5 Real-World Examples You Can Use Today

foreach as php — 5 Real-World Examples You Can Use Today

The foreach loop in PHP (using the as keyword) is the easiest way to iterate arrays and objects. Below are five clear, Blogger-friendly examples (each code block is escaped so it displays correctly in the post).

1) Indexed Array (simple list)

Use this when you have a plain numeric-indexed array.

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

foreach ($fruits as $fruit) {
    echo $fruit . "<br>";
}
?>

2) Associative Array (key => value)

Great for mapping keys to values (like name => age).

<?php
$person = [
    "name" => "John",
    "age" => 25,
    "city" => "New York"
];

foreach ($person as $key => $value) {
    echo $key . ": " . $value . "<br>";
}
?>

3) Multidimensional Array

Use for arrays containing arrays (e.g., list of users).

<?php
$users = [
    ["name" => "Alice", "age" => 22],
    ["name" => "Bob",   "age" => 30]
];

foreach ($users as $user) {
    echo "Name: " . $user["name"] . ", Age: " . $user["age"] . "<br>";
}
?>

4) Objects (iterate public properties)

You can loop over an object to read its public properties.

<?php
class Car {
    public $brand = "Toyota";
    public $model = "Corolla";
    public $year  = 2022;
}

$car = new Car();

foreach ($car as $prop => $val) {
    echo $prop . ": " . $val . "<br>";
}
?>

5) Mixed Data Types (strings, numbers, booleans)

Handle arrays that contain different data types. Use var_dump() to inspect values when needed.

<?php
$mixed = ["Hello", 123, 3.14, true, null];

foreach ($mixed as $item) {
    var_dump($item);   // shows type + value
    echo "<br>";
}
?>
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