3v4l.org

run code in 300+ PHP versions simultaneously
<?php $msg1 = <<<_STR Hi X Blah Kind regards ABC _STR; $msg2 = <<<_STR Hi Y Blah Regards CBA _STR; foreach ([$msg1, $msg2] as $message) { $found = trim(preg_split('/^.*regards$/im', $message, 2)[0]); echo 'Found: "', $found, '"', PHP_EOL; }
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Found: "Hi X Blah" Found: "Hi Y Blah"

preferences:
243.41 ms | 403 KiB | 283 Q