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<?php $str = "a".str_repeat("\xCC\x8A", 100000); var_dump( 1 === preg_match_all('/\X/u', $str), 1 === preg_match_all('/(?>\PM\pM*)/u', $str) );
Output for 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
bool(true) bool(true)
Output for 4.3.4 - 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
Warning: preg_match_all() expects at least 3 parameters, 2 given in /in/s1i2T on line 4 Warning: preg_match_all() expects at least 3 parameters, 2 given in /in/s1i2T on line 5 bool(false) bool(false)
Output for 4.3.3
Warning: Compilation failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1 in /in/s1i2T on line 4 Warning: Compilation failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 4 in /in/s1i2T on line 5 bool(false) bool(false)
Output for 4.3.0 - 4.3.2
Warning: Wrong parameter count for preg_match_all() in /in/s1i2T on line 4 Warning: Wrong parameter count for preg_match_all() in /in/s1i2T on line 5 bool(false) bool(false)
preferences:
298.43 ms | 401 KiB | 458 Q