Human Readable File Size with PHP

function human_filesize($bytes, $decimals = 2) { $size = array('B',kB,MB,GB,TB,PB,EB,ZB,YB); $factor = floor((strlen($bytes) - 1) / 3); return sprintf(%.{$decimals}f, $bytes / pow(1024, $factor)) . @$size[$factor];}
echo human_filesize(filesize(test.jpg));