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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} removeIfEmpty 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"; $matches = array(); preg_match_all($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, 5.5.24 - 5.5.35, 5.6.8 - 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
array(2) { [0]=> string(46) "Phone / Skype: {Phone / Skype|8} removeIfEmpty" [1]=> string(30) "{Tell us more|9} removeIfEmpty" }

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