How to set a global variable accessible throughout the application

Question

I developed a PHP page with global variable like this;

global $amty_imgCache; $amty_imgCache = array();
$GLOBALS[\"amty_imgCache\"]=$amty_imgCache;
         


        

Answer 1

You cant really persist variables across the execution of pages without saving them to some persistent store.

If you need to store a variable only for a specific user, use the session using session_start(); and then using $_SESSION;

If it's for the whole application, you should look into using a database or saving data to a file. If saving to a file, checkout serialize() and unserialize() which will let you store the state of your variables to a text representation.