integrate_error_types function call not working

[Randem06]

Description

I have attempted to use this integrated function to no avail until I changed the line in Errors.php in the function log_error

$known_error_types += $other_error_types;
to
$known_error_types = array_merge($known_error_types, $other_error_types);

Steps to reproduce

1. Call the hook integrate_error_types in Errors.php

Environment (complete as necessary)

• Version/Git revision:
• Database Type:
• Database Version:
• PHP Version:

Additional information/references

[Sesquipedalian]

Yup. Because both arrays use numeric keys, the += operator causes the values in the second array to overwrite some of the values in the first, rather than appending the second array's values to the first. Using array_merge() as suggested will produce the expected results.