$key
$key : string
Exception to be thrown when a file already exists.
This exception is specifically designed to handle scenarios where an attempt is made to create or overwrite a file that already exists in the filesystem. It extends the RuntimeException, providing a clear indication that this error is due to an improper use of the filesystem operations.
__construct(string $key, int $code, \Exception|null $previous = null) : mixed
Constructs a new FileAlreadyExistsException.
| string | $key | The key (path) of the existing file. |
| int | $code | The error code (default is 0). |
| \Exception|null | $previous | The previous exception for exception chaining (default is null). |