Online PHP editor | refs for uP20f

<?php function multiID($n=32) { $r = null; for ($x=$s=0; $x<$n; $x++) { $c = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890'; if (($x<$n) && ($x > 0) && ($s < 2)) { $c .= '-_'; } $g = substr($c, mt_rand(0, strlen($c) - 1), 1); $r .= $g; if (($g == '_') || ($g == '-')) { $s++; } } return $r; } echo multiID(128);