3v4l.org

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<?php # The problem, hyphen use within class in incorrect position. var_dump(preg_match('~[0-9\w-.]*~', '')); # The fix, or we escape the hyphen or we put it last var_dump(preg_match('~[0-9\w\-.]*~', '')); var_dump(preg_match('~[0-9\w-.-]*~', ''));
Output for 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
Warning: preg_match(): Compilation failed: invalid range in character class at offset 6 in /in/05LeL on line 3 bool(false) int(1) Warning: preg_match(): Compilation failed: invalid range in character class at offset 6 in /in/05LeL on line 6 bool(false)
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
int(1) int(1) int(1)
preferences:
173.01 ms | 402 KiB | 212 Q