JString::strtoupper

UTF-8 aware alternative to strtoupper Make a string uppercase Note: The concept of a characters "case" only exists is some alphabets such as Latin, Greek, Cyrillic, Armenian and archaic Georgian - it does not exist in the Chinese alphabet, for example. See Unicode Standard Annex #21: Case Mappings

Signature

public function strtoupper(string $str )

Parameters

$str

String being processed

Returns

mixed

Either string in uppercase or FALSE is UTF-8 invalid