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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(strlen(𠀋)); var_dump(preg_match('//u', "\xE3\x81\x82", $matches)); var_dump(preg_match('//u', "\xF0\xA0\x80\x8B", $matches)); var_dump(preg_match('//u', "\xF0\xA0\x80\x8B\x01\xFF", $matches)); var_dump(preg_match('//u', "𠀋", $matches)); var_dump("\xF0\xA0\x80\x8B" == "𠀋");
based on 5I8hN
Output for 7.2.0
Warning: Use of undefined constant 𠀋 - assumed '𠀋' (this will throw an Error in a future version of PHP) in /in/aRHat on line 2 int(4) int(1) int(1) bool(false) int(1) bool(true)
Output for 5.3.4 - 7.1.10
Notice: Use of undefined constant 𠀋 - assumed '𠀋' in /in/aRHat on line 2 int(4) int(1) int(1) bool(false) int(1) bool(true)
Output for 4.3.5 - 5.3.3
Notice: Use of undefined constant 𠀋 - assumed '𠀋' in /in/aRHat on line 2 int(4) int(1) int(1) int(0) int(1) bool(true)
Output for 4.3.0 - 4.3.4
Notice: Use of undefined constant 𠀋 - assumed '𠀋' in /in/aRHat on line 2 int(4) int(1) int(1) int(1) int(1) bool(true)