3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php mb_substitute_character('a'); var_dump(mb_convert_encoding(chr(190), 'UTF-8', 'UTF-8'));
Output for 7.2.0
Warning: mb_substitute_character(): Unknown character in /in/6ZASV on line 2 string(1) "?"
Output for 5.4.0 - 7.1.10
Warning: mb_substitute_character(): Unknown character. in /in/6ZASV on line 2 string(1) "?"
Output for 4.3.2 - 5.3.29
Warning: mb_substitute_character(): Unknown character. in /in/6ZASV 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/6ZASV on line 2 string(0) ""