Return a size in bytes,kilobytes,megabytes and gigabytes for given array or string. Can be used if you want to check performance for some script.

array_in_lenght

<?php
function array_size($arr) {
    $byte = 0;
    foreach ($arr as $key => $val) {
        $byte += is_array($val) ? array_size($val) : mb_strlen($val);
    }
    $kb = number_format($byte / 1024, 4);
    $mb = number_format($byte / 1048576, 4);
    $gb = number_format($byte / 1073741824, 4);
    $result = array('Bytes: ' => $byte, 'Kilobytes: ' => $kb, 'Megabytes: ' => $mb, 'Gigabytes: ' => $gb);
    return $result;
}
?>