Strict Standards: Only variables should be assigned by reference PHP 5.4

Question

I upgraded my PHP version to 5.4 (XAMPP 1.7.3 to 1.8.0). Now I see Strict Standards error, for myDBconnection:

Strict Standards: On

Answer 1

You should remove the & (ampersand) symbol, so that line 4 will look like this:

$conn = ADONewConnection($config['db_type']);

This is because ADONewConnection already returns an object by reference. As per documentation, assigning the result of a reference to object by reference results in an E_DEPRECATED message as of PHP 5.3.0

Answer 2

It's because you're trying to assign an object by reference. Remove the ampersand and your script should work as intended.