3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php mb_internal_encoding('UTF-8'); $value = 'g' . chr(0xa4) .'eld'; $orignalValue = $value; mb_substitute_character('entity'); $value = mb_convert_encoding($value, 'UTF-8'); if (mb_strlen($value, 'UTF-8') < mb_strlen($orignalValue) || preg_match('|[^\x09\x0A\x0D\x20-\xD77F\xE000-\xFFFD]|e', $value)) { // value not ISO-8859-15 or UTF8 $value = base64_encode($orignalValue); } var_dump($value);
Output for 5.4.0 - 7.1.0
string(5) "g?eld"
Output for 5.2.5 - 5.3.29
string(8) "Z6RlbGQ="
Output for 4.3.2 - 5.2.4
Warning: mb_substitute_character(): Unknown character. in /in/LFuqk on line 7 string(8) "Z6RlbGQ="
Output for 4.3.0 - 4.3.1
Warning: mb_substitute_character() [http://www.php.net/function.mb-substitute-character]: Unknown character. in /in/LFuqk on line 7 string(8) "Z6RlbGQ="