3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_substitute_character("?"); var_dump(mb_convert_encoding(chr(190), 'UTF-8', 'UTF-8'));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ValueError: mb_substitute_character(): Argument #1 ($substitute_character) must be "none", "long", "entity" or a valid codepoint in /in/EVYB6:2 Stack trace: #0 /in/EVYB6(2): mb_substitute_character('?') #1 {main} thrown in /in/EVYB6 on line 2
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: mb_substitute_character(): Unknown character in /in/EVYB6 on line 2 string(1) "?"
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
Warning: mb_substitute_character(): Unknown character. in /in/EVYB6 on line 2 string(1) "?"
Output for 4.3.2 - 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: mb_substitute_character(): Unknown character. in /in/EVYB6 on line 2 string(0) ""
Output for 4.3.0 - 4.3.1
Warning: mb_substitute_character() [http://www.php.net/function.mb-substitute-character]: Unknown character. in /in/EVYB6 on line 2 string(0) ""

preferences:
311.31 ms | 401 KiB | 457 Q