function fromString($value)
    {
        $this->clear();
        $this->orignalValue = $this->returnValue  = (string) $value;
        return $this->parse();
    }
function fromString($value)
    {
        $this->clear();
        $this->orignalValue = $this->returnValue  = (string) $value;
        return $this->parse();
    }
function fromString ( $ value ) { $ this -> clear ( ) ; $ this -> orignalValue = $ this -> returnValue = ( string ) $ value ; return $ this -> parse ( ) ; }
Create a Url instance from a string.

@param string $value
@return $this
Create a Url instance from a string .