public function setProgressive($progressive = TRUE)
    {
        if(is_bool($progressive))
        {
            $this->progressive = $progressive;
        }
        else
        {
            trigger_error('Picture progressive mode must be boolean', E_USER_WARNING);
        }
    }
public function setProgressive($progressive = TRUE)
    {
        if(is_bool($progressive))
        {
            $this->progressive = $progressive;
        }
        else
        {
            trigger_error('Picture progressive mode must be boolean', E_USER_WARNING);
        }
    }
public function setProgressive ( $ progressive = TRUE ) { if ( is_bool ( $ progressive ) ) { $ this -> progressive = $ progressive ; } else { trigger_error ( 'Picture progressive mode must be boolean' , E_USER_WARNING ) ; } }
Set picture saving mode as progressive image?
@param bool $progressive
Set picture saving mode as progressive image?