3v4l.org

run code in 500+ PHP versions simultaneously
<?php $string = <<<TEXT [Beginning] ABC [Ending] [Beginning] DEF [Ending] [Beginning] GHI [Ending] [Beginning] JKL [Ending] [Beginning] MNO [Ending] TEXT; preg_match_all('/^' . preg_quote('[Beginning]') . '[\r\n]+(.*)[\r\n]+' . preg_quote('[Ending]') . '$/m', $string, $matches); print_r($matches);

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99.83 ms | 1522 KiB | 5 Q