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<?php setlocale(LC_ALL, 'de_DE'); // German locale (not needed, but you never know...) echo preg_match('/^[a-z]+$/', 'abc') ? "yes\n" : "no\n"; echo preg_match('/^[a-z]+$/', "\äbc") ? "yes\n" : "no\n"; // äbc in ISO-8859-1 echo preg_match('/^[a-z]+$/', "\xC3\xA4bc") ? "yes\n" : "no\n"; // äbc in UTF-8 echo preg_match('/^[a-z]+$/u', "\xC3\xA4bc") ? "yes\n" : "no\n"; // w/ PCRE_UTF8
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 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
yes no no no
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/gBOaB on line 7
Process exited with code 255.
preferences:
266.25 ms | 401 KiB | 342 Q