3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'DE94300400000100724400'; if(strlen(trim($string)) != 22) return; $prefix=substr($string, 4, 8); $suffix=substr($string, 12, 10); print $account=$prefix.'/'.$suffix;

preferences:
34.99 ms | 402 KiB | 5 Q