Online PHP editor | refs for 13Cmm

<?php $strings = [ "NPWP:016386112436000 JALAN ELANG DESA SUKAHATI CITEUREUP BOGOR 16810, INDONESIA TEL:+62(21)8765105", "NPWP 314633389431000 DELTA SILICON INDUSTRIALL PARK 3 JL PINANG F 16/25A, CICAU CIKARANG PUSAT, CITY: BEKASI, JB 17550 INDONESIA" ]; foreach ($strings as $string) { if(preg_match('/^NPWP:?\s*\K\d+/', $string, $matches)) { echo ($matches[0]) . PHP_EOL; } }