strtoupper Make a string uppercase &reftitle.description; stringstrtoupper stringstring Returns string with all alphabetic characters converted to uppercase. Note that 'alphabetic' is determined by the current locale. For instance, in the default "C" locale characters such as umlaut-a (ä) will not be converted. &reftitle.parameters; string The input string. &reftitle.returnvalues; Returns the uppercased string. &reftitle.examples; ]]> &reftitle.notes; ¬e.bin-safe; &reftitle.seealso; strtolower ucfirst ucwords mb_strtoupper