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<?php $comment = ' <!--this is comment <!--and this as well and end-- of comment is!-->right now-->'; preg_match('/(\<!--\s*.*?((--\>)|$))/im', $comment, $matches); var_dump($matches);
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [0]=> string(68) "<!--this is comment <!--and this as well and end-- of comment is!-->" [1]=> string(68) "<!--this is comment <!--and this as well and end-- of comment is!-->" [2]=> string(3) "-->" [3]=> string(3) "-->" }

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