How do you do ?
I would like to ask about symbol @ in PHP $variable in blade laravel 5. This is the code that I get, but unfortunately the previous programmer was is lost.
Please note at this -> {{ old(‘title_id’, @$result->title_id) }}.
Why using @ ? and what is different with {{ old(‘title_id’, $result->title_id) }} without @.
Thank you very much
>Solution :
The @ is used as error control operator at php. Php will not throw any error generated from the exception.
{{ old('title_id', @$result->title_id) }}.
The purpose to use the @ symbol here is to prevent the program from throw exception like "try to call title_id from an empty object". Instead it goes with define the variable with null value. It sometimes usefull when you want to do the edit / create on the same blade file.
If you dont use @ symbol, you must handle if the variable is empty or not first and you ended up with code like
{{ old('title_id', $result ? $result->title_id : '') }}
You can read more detail at php documentation.