<?php $array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red'); $key = array_search('green', $array); // $key = 2; $key = array_search('red', $array); // $key = 1; ?>
$array = [ 'clothes' => 't-shirt', 'size' => 'medium', 'color' => 'blue', ]; extract($array); echo("$clothes $size $color"); // t-shirt medium blue