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<?php $comment = ' <!-- comment <!-- commentreer --> -->'; preg_match('/(\<!--\s*.*?((--\>)|$))/imsx', $comment, $matches); var_dump($matches);
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [0]=> string(35) "<!-- comment <!-- commentreer -->" [1]=> string(35) "<!-- comment <!-- commentreer -->" [2]=> string(3) "-->" [3]=> string(3) "-->" }

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