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<?php $re = '/(\w+(?:-\w+)*)=(?|"((?:[^"]+|(?<=\\\\)")++)"|([^"\s]+))/'; $str = 'add name=100YER on-login=":do {:put \\"a\\";} on-error={};" rate-limit=256k/512k'; preg_match_all($re, $str, $matches); $result = array_combine($matches[1], $matches[2]); print_r($result);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [name] => 100YER [on-login] => :do {:put \"a\";} on-error={}; [rate-limit] => 256k/512k )

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