how can i read a variable from a php file?

hi to all i'm new to construct3 so sorry for the newbie question.

I'm creating a quiz-game and at the end of the quiz you have to enter your name and email, these are sent to a php file which generates an html file with the test results and is then sent by email.

in that php file I also have a variable that indicates the status of the email, I need to recover that variable to assign its value to a variable on construct, is there an good method to do this?

I believe you can echo this variable in the php. And then in your Construct project you will be able to get it in the AJAX response. Use "On AJAX completed" event and AJAX.LastData expression should contain that value.