Variables How to in PHP

How can I use OPTION EXPLICIT as i use in ASP so that in PHP to restrict myself from using the variable without declaring it

Thank You😕

I dont think there is such an option...

There is a way of doing the same as option explicit in PHP

ITs called error_reporting

You can either set it in the php.ini file or you can set it in the top of your scripts, (you may not have access to your php.ini file)

To do what you want then add the following code to the top of a php file

error_reporting (E_ALL);

more info can be found here