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Asked: 2026-05-11T14:03:38+00:00

I have a form in a PHP sending variables to a PHP file which

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I have a form in a PHP sending variables to a PHP file which duly inserts them into a MySQL table.

I currently have a div displaying the response from the PHP (which is anything that is printed by the PHP).

All works fine. The problem is I want to use variables that are created/updated during the PHP MySQL insert process. I.e. not only show what is printed in that PHP file, but USE those variables.

I have seen complicated use of the JSON Encoding to possibly cross this divide, but I’d love to know if that’s the simplest approach. And if anyone has any good links or examples on the subject.

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  1. I assume that you want to be able to have multiple pieces of data sent back via AJAX to your page and manipulate those.

    JSON is indeed the simplest way to do this. If you use PHP5, you can use json_encode() from the PHP side to send a complicated data type (such as an object or an array) back to the browser page. Then in the javascript, you use eval() on the data that is sent back (ex: var data = eval(response);) to parse it back into a usable complicated type in javascript.

    There are tons of tutorials out there that will show you how to do this and explain it in further detail than a response here ever could.

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