3v4l.org

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<?php $re = '/^((?:(?!\<\?php echo[\s?](?:.*?)\;[\s?]\?\>).)*)<\?php echo[\s?](?:.*?)\;[\s?]\?\>(.*)/'; $str = 'customFields[<?php echo $field["id"]; ?>][type]'; preg_match_all($re, $str, $matches, PREG_SET_ORDER); array_shift($matches[0]); print_r($matches);
Output for 7.1.25 - 7.1.28, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Array ( [0] => Array ( [0] => customFields[ [1] => ][type] ) )
preferences:
112.51 ms | 408 KiB | 5 Q