getError() public method

returns last error message or false if no errors occurred
public getError ( resource $link ) : string | boolean
$link resource connection link
return string | boolean $error or false
 /**
  * returns last error message or false if no errors occurred
  *
  * @param object $link connection link
  *
  * @return string|bool $error or false
  */
 public function getError($link = null)
 {
     $link = $this->getLink($link);
     if ($link === false) {
         return false;
     }
     return $this->_extension->getError($link);
 }
 /**
  * returns last error message or false if no errors occurred
  *
  * @param object $link connection link
  *
  * @return string|bool $error or false
  */
 public function getError($link = null)
 {
     $link = $this->getLink($link);
     return $this->_extension->getError($link);
 }