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run code in 150+ php & hhvm versions
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<?php //mb_internal_encoding('UTF-8'); $value = 'g' . chr(0xa4) .'eld'; mb_substitute_character('none'); $originalValue = $value; var_dump(mb_detect_encoding($value, mb_detect_order())); $value = mb_convert_encoding($value, 'UTF-8'); var_dump($value, mb_strlen($value, 'UTF-8'), mb_strlen($originalValue));
Output for 5.6.0 - 7.1.0
bool(false) string(4) "geld" int(4) int(5)
Output for 4.3.4 - 5.5.35
bool(false) string(6) "g¤eld" int(5) int(5)
Output for 4.3.0 - 4.3.3
string(4) "SJIS" string(6) "g¤eld" int(5) int(5)