TIL: Using `error_get_last()` in library code is almost always wrong 💥 #php #gotcha

See why this may or may not return a `Warning: Trying to access array offset on value of type null`? We only call `error_get_last()` if we're sure an error occurred. However, while the error suppression operator `@` correctly hides errors, it still calls global error handlers set via `set_error_handler()` outside our control. In result, `error_get_last()` would return null! 💥