3v4l.org

run code in 300+ PHP versions simultaneously
<?php $lines ="From: {Name|1} {Email|11} Phone / Skype: {Phone / Skype|8} removeIfEmpty Message Body: {Tell us more|9} Sender's IP: {ip} {refUTM} -- This e-mail was sent from a contact form on Software Development Company - Redwerk (http://redwerk.com)"; $pattern = "/^.*\bremoveIfEmpty\b.*$/m"; $matches = array(); preg_match($pattern, $lines, $matches); foreach($matches as $match) { var_dump($match); }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(46) "Phone / Skype: {Phone / Skype|8} removeIfEmpty"
preferences:
282.79 ms | 406 KiB | 382 Q