php array foreach as key value code example

Example 1: foreach ph

<?php
$arr = array(1, 2, 3, 4);
foreach ($arr as &$value) {
    $value = $value * 2;
}
// $arr is now array(2, 4, 6, 8)
unset($value); // break the reference with the last element
?>

Example 2: loop through values of hash php

<?php
    while (list($var, $val) = each($array)) {
        print "$var is $val\n";
    }
?>