3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo _CHAR_SET;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Undefined constant "_CHAR_SET" in /in/UhNkg:3 Stack trace: #0 {main} thrown in /in/UhNkg on line 3
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant _CHAR_SET - assumed '_CHAR_SET' (this will throw an Error in a future version of PHP) in /in/UhNkg on line 3 _CHAR_SET
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Notice: Use of undefined constant _CHAR_SET - assumed '_CHAR_SET' in /in/UhNkg on line 3 _CHAR_SET

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