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run code in 150+ php & hhvm versions
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<?php $pattern = '/^[\p{L}\-\. ]{2,100}$/u'; $subject = 'Łódź'; $result = preg_match( $pattern, $subject , $matches ); print_r($matches);
Output for 4.4.0 - 4.4.9, 5.0.5 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => Łódź )
Output for 4.3.11, 5.0.0 - 5.0.4
Warning: preg_match(): Compilation failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 3 in /in/GZO41 on line 5 Array ( )
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 3 in /in/GZO41 on line 5 Array ( )