how to get index of element in array in php code example

Example 1: how to lookup value inside object php

$array = [
    'clothes' => 't-shirt',
    'size'    => 'medium',
    'color'   => 'blue',
];
 
extract($array);
 
echo("$clothes $size $color"); // t-shirt medium blue

Example 2: array_search in php

<?php
$a = [
'Canceled' => 1,
'Traded / Filled'=> 2,
'(Not used currently)'=> 3,
'Transit'=> 4,
'Rejected'=> 5,
'Pending'=> 6,
];
echo array_search("5",$a);
?>