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<?php $data = "CN=Carina Costa(42353),OU=Administrativos,OU=Amadora,OU=Utilizadores,DC=hluz,DC=ess,DC=local"; $pattern = '/=([^,]+)/'; $matches = []; preg_match($pattern, $data,$matches); $result = count($matches)? $matches[1]:null; //the match, or NULL var_dump($result);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
string(19) "Carina Costa(42353)"

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