<?php $pattern = "/(?(DEFINE)(?<p1>BEGIN)(?<p2>END))((?&p1)|(?&p2))+/"; $subject = <<<EOF BEGIN something(); BEGIN if (false) echo "e"; END END EOF; $count = preg_match_all($pattern, $subject, $matches); var_dump($count, $matches);
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Value for `_results` contains invalid data `array`