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<?php $regex = '/(?J)TXT(?<number>[0-9]+)|(?<number>[0-9]+)TXT/'; if (preg_match_all($regex, "TXT123 and 456TXT1", $matches, PREG_SET_ORDER, 0)) { foreach ($matches as $m) { echo $m["number"] . PHP_EOL; } }
Output for git.master, git.master_jit, rfc.property-hooks
123 456

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