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<?php $re = '/(?:\?|\G(?!^))\K\.[a-zA-Z]+/'; $str = 'othertext ?.abc.de.fgh.i moretext'; preg_match_all($re, $str, $matches); var_dump($matches[0]);
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [0]=> string(4) ".abc" [1]=> string(3) ".de" [2]=> string(4) ".fgh" [3]=> string(2) ".i" }

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