Question

I’ve got a custom database class which extends the MySQLi class.

It connects to the database using parent in the __construct method.

Below is the portion of the query if the query is not successful, how do I return the error from the server?

$query =  parent::query($querystr, $resultmode);
    if (!$query) {
        $error = str_replace(
            'You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use',
            'Syntax Error',
            mysqli_error(self::getInstance()));
        \core\debug::sqlerrorlog($error);
    } else {
        \core\debug::sqlSuccess();
    }

Answer 1

According to docs, you just need to do $this->error.

As I understand, your problem now is that you don’t pass a correct intsance of mysqli to mysql_error – maybe self::getInstance() is not doing what it supposed to, but I can’t tell from what I see.