How Can I Pass JavaScript Variables to PHP Using Form Submission?

Passing JavaScript Variables to PHP via Form Submission

Passing JavaScript variables to PHP code requires a different approach than directly accessing them. This is because PHP code is executed on the server-side while JavaScript is executed on the client-side.

To pass a variable from JavaScript to PHP, one method is to use a hidden form input field. However, it's crucial to understand that PHP cannot directly access JavaScript variable values within the same page.

In the provided code snippet, the hidden1 input is assigned a value from the JavaScript function func_load3. However, the PHP code is attempting to retrieve this value as $salarieid.

To address this, you can embed JavaScript or jQuery into the HTML form like so:

<form name="myform" action="<?php echo $_SERVER['$PHP_SELF']; ?>" method="POST">
    <input type="hidden" name="hidden1">

Upon form submission, the PHP code can access the hidden1 variable's value as follows:

$salarieid = $_POST['hidden1'];

However, this approach requires submitting the form to transfer the data. For alternative solutions, such as using AJAX or web sockets, consult other resources online.

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