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);
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Array ( [0] => Array ( [0] => Array ( [0] => 123 [1] => 37 ) [1] => Array ( [0] => 999 [1] => 86 ) ) )
preferences:
101.4 ms | 1465 KiB | 4 Q