- array_search: documentation ( source)
- print_r: documentation ( source)
<?php
$arr = array("server"=>array("web11"=>"1", "web12"=>"fails", "web13"=>"1"), "maxCdn"=>"200", "status" => "200");
print_r($arr);
print_r($arr["server"]);
print_r(array_search("fails",$arr));