Error Set_Value default value empty

PHP Code:

function set_value(string $field, string $default = '', bool $html_escape = true): string 


There is no check if the $default value is empty or not.
A possible solutions could be

PHP Code:

if (empty(@$default)){$default='';} 


Hi, I'm afraid I don't quite understand what is wrong with having an empty string as default.

Can you show me some code and details on your problem.