3v4l.org

run code in 200+ PHP versions simultaneously
<?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.-]*~', ''));
based on 05LeL
Output for 7.3.0 - 7.4.0
Warning: preg_match(): Compilation failed: invalid range in character class at offset 6 in /in/tliEE on line 3 bool(false) int(1) int(1)
Output for 7.1.25 - 7.2.17
int(1) int(1) int(1)