<?php function get_config_bytes($val) { $val = trim($val); $last = substr($val, -1); // Get the last character $val = rtrim($val, $last); // Trim away the last character which isn't a number switch(strtolower($last)) { case 'g': $val *= 1024; case 'm': $val *= 1024; case 'k': $val *= 1024; } return $val; } var_dump(get_config_bytes('20M'));
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