What are the best practices for handling form submissions and validation in PHP, especially when dealing with multiple forms on a single page?

When dealing with multiple forms on a single page in PHP, it is important to properly handle form submissions and validation to ensure data integrity and security. One approach is to use unique names for each form and submit button, and then check which form was submitted using conditional statements. Additionally, you can use server-side validation to check the submitted data before processing it. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    if (isset($_POST['form1_submit'])) {
        // Process form 1 data
        // Perform validation for form 1 fields
    } elseif (isset($_POST['form2_submit'])) {
        // Process form 2 data
        // Perform validation for form 2 fields
    }
}
?>

Keywords

form submissions validation PHP multiple forms single page

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