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<?php $exp = '/^[a-z]{2}|all$/'; $tests = array('fr', 'french', 'FR', 'all', 'ALL'); foreach ($tests as $test) { echo sprintf("%-10s : %s\n", $test, preg_match($exp, $test) ? "OK" : "ERROR"); }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 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 - 8.2.18, 8.3.0 - 8.3.6
fr : OK french : OK FR : ERROR all : OK ALL : ERROR
preferences:
286.39 ms | 406 KiB | 460 Q