Get an array containing the keys by value parameter in PHP

Description

The following code shows how to get an array containing the keys by value parameter.

Example

/* w  w w .j  a va2s .  c  om*/
<?php
    $a=array("XML"=>"data","CSS"=>"style","HTML"=>"mark");
    print_r(array_keys($a,"mark"));
?>

The code above generates the following result.