Online PHP editor | refs for kn2jD

<?php $a = [ 'sss4444dfdf', //лишние '444444', //много 'sdfsdf', //все не то '', // '4', //мало ]; $i = 0; echo($tmp = preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])? $tmp : 0).PHP_EOL; echo($tmp = preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])? $tmp : 0).PHP_EOL; echo($tmp = preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])? $tmp : 0).PHP_EOL; echo($tmp = preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])? $tmp : 0).PHP_EOL; echo($tmp = preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])? $tmp : 0).PHP_EOL;