Valid use cases for at-sign in php

Question

The at sign is used to hide error messages. As far as I see, there is absolutely no use case or excuse for using it.

1. You can hide errors in production by changing

Answer 1

In most cases you should indeed not use it. Some cases it makes sense though:

• unlink()
• while (@ob_end_flush());

There might be some other edge cases, but besides these you should really never ever supress errors.