src/Str.php
public function toUpperCase() {
		$rawString = mb_strtoupper($this->rawString, $this->charset);

		return new static($rawString, $this->charset);
	}
public function toUpperCase() {
		$rawString = mb_strtoupper($this->rawString, $this->charset);

		return new static($rawString, $this->charset);
	}
public function toUpperCase ( ) { $ rawString = mb_strtoupper ( $ this -> rawString , $ this -> charset ) ; return new static ( $ rawString , $ this -> charset ) ; }
Converts this string to uppercase

@return static a new instance of this class
Converts this string to uppercase