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<?php $str = 'ä€'; var_dump(strlen($str)); var_dump(mb_detect_encoding($str, 'auto', true)); $iso = mb_convert_encoding($str, 'iso-8859-1', 'utf-8'); var_dump(strlen($str)); var_dump(mb_detect_encoding($iso, 'utf-8, iso-8859-1', true));
Output for git.master, git.master_jit, rfc.property-hooks
int(5) string(5) "UTF-8" int(5) string(10) "ISO-8859-1"

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