Question

There is a php file (current.php) with some variables, like:

function do() {
    $var = 'something';
}

And one more php file (retrieve.php), which is loaded to current.php with jQuery ajax .load().

The problem is – retrieve.php doesn’t see $var.

Tryed this (inside retrieve.php, shows nothing):

global $var;
echo $var;

How to fix?

Thanks.

Answer 1

Some things you must be aware of:

• When you use PHP, you do not download a file: you execute a script and retrieve its output.
• PHP variables are destroyed when the script ends. You cannot share variables between two scripts unless you store them somewhere (e.g., in a database or session file).
• PHP variables are local to the function where you define them, unless you issue a global $foo; statement inside the function.
• jQuery is a JavaScript library. JavaScript and PHP are different languages: they cannot see each other variables.

Said that, I suggest you reconsider your question and try to explain what you need to accomplish rather that how you want to implement it.