mb_convert_case Perform case folding on a string &reftitle.description; stringmb_convert_case stringstr intmode stringencodingmb_internal_encoding() Performs case folding on a string, converted in the way specified by mode. &reftitle.parameters; str The string being converted. mode The mode of the conversion. It can be one of MB_CASE_UPPER, MB_CASE_LOWER, or MB_CASE_TITLE. encoding &mbstring.encoding.parameter; &reftitle.returnvalues; A case folded version of string converted in the way specified by mode. &reftitle.unicode; By contrast to the standard case folding functions such as strtolower and strtoupper, case folding is performed on the basis of the Unicode character properties. Thus the behaviour of this function is not affected by locale settings and it can convert any characters that have 'alphabetic' property, such as A-umlaut (Ä). For more information about the Unicode properties, please see &url.unicode.reports;. &reftitle.examples; <function>mb_convert_case</function> example ]]> <function>mb_convert_case</function> example with non-Latin UTF-8 text ]]> &reftitle.seealso; mb_strtolower mb_strtoupper strtolower strtoupper ucfirst ucwords