How can I effectively pass JavaScript variables to PHP for server-side processing?-PHP Tutorial-php.cn

How can I effectively pass JavaScript variables to PHP for server-side processing?

Susan Sarandon

Release： 2025-01-01 05:29:11

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How can I effectively pass JavaScript variables to PHP for server-side processing?

How do I pass JavaScript variables to PHP?

In this scenario, you aim to transfer JavaScript variables to PHP utilizing hidden form inputs. However, you encounter difficulty in retrieving the value of $salarieid from $_POST['hidden1'].

Understanding the Issue

PHP code operates on the server-side, independent of client-side activities like JavaScript. Therefore, it cannot directly access JavaScript variables.

Alternative Solution: Submitting Form Data

Instead of relying on JavaScript, utilize the GET or POST methods within HTML forms to pass variable values to PHP.

Consider the following updated code:

index.php

<!DOCTYPE html>
<html>
<head>
  <title>Salary Selection Form</title>
</head>
<body>
  <form method="POST">
    <label for="salarieids">Salarie ID:</label>
    <select>

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