3v4l.org

run code in 300+ PHP versions simultaneously
<?php // your input $haystack = "jack john 123 jill £2310 peter paul 123 328190 john john peter 1 paul 049 peter paul 999"; // find the matches and write them into $matches preg_match_all('/(?<=peter paul\s)[\d]+/', $haystack, $matches, PREG_OFFSET_CAPTURE); // output print_r($matches);

preferences:
102 ms | 1465 KiB | 5 Q