php/widgets/ButtonWidget.php
public function setHref( $href ) {
		$this->href = is_string( $href ) ? $href : null;

		$this->updateHref();

		return $this;
	}
public function setHref( $href ) {
		$this->href = is_string( $href ) ? $href : null;

		$this->updateHref();

		return $this;
	}
public function setHref ( $ href ) { $ this -> href = is_string ( $ href ) ? $ href : null ; $ this -> updateHref ( ) ; return $ this ; }
Set hyperlink location.

@param string|null $href Hyperlink location, null to remove
@return $this
Set hyperlink location .