Check memory usage PHP script

getMemoryUsage.php

<?php
// https://www.php.net/manual/en/function.memory-get-usage.php#96280

function convert($size)
{
    $unit=array('b','kb','mb','gb','tb','pb');
    return @round($size/pow(1024,($i=floor(log($size,1024)))),2).' '.$unit[$i];
}

echo convert(memory_get_usage(true)); // 123 kb
?>