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<?php $str = "abc pqrs-1/2&3uvw xyz"; if (preg_match('~([a-z]+)((?:[^0-9a-z][0-9])+)([a-z]+)~', $str, $matches)) { preg_match_all('~[^0-9a-z][0-9]~', $matches[2], $x); $matches[2] = $x[0]; } print_r($matches);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => pqrs-1/2&3uvw [1] => pqrs [2] => Array ( [0] => -1 [1] => /2 [2] => &3 ) [3] => uvw )

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