What are the potential issues with redirecting to a separate PHP file for processing form data instead of handling it within the same file?

One potential issue with redirecting to a separate PHP file for processing form data is that it can make the code harder to maintain and debug, as the logic is split across multiple files. To solve this, you can handle the form data processing within the same file by checking if the form has been submitted and processing the data accordingly. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form data here
    // Redirect or display success message
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>Form Processing</title>
</head>
<body>
    <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
        <!-- Form fields here -->
        <input type="submit" value="Submit">
    </form>
</body>
</html>

Keywords

redirect separate file form data processing PHP

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