Apache/2.4.23 (Win64) PHP/7.1.0
PhpMyAdmin: 4.6.5.2
Error Image:

Any idea?
Just to add to Alex's answer, the code has a typo which makes it invalid, it should look like this:
public function handleError($errno, $errstr, $errfile, $errline)
{
if (error_reporting() == 0 || $errno == E_DEPRECATED) { // added – $errno == E_DEPRECATED
return;
}
$this->addError($errstr, $errno, $errfile, $errline, true);
}