Is it recommended to avoid using frames in PHP form designs to prevent issues with variable passing?

Using frames in PHP form designs can cause issues with variable passing because frames create separate HTML documents, which can lead to complications in passing variables between them. It is recommended to avoid using frames and instead use a single HTML document with PHP form elements to prevent these issues. By keeping all form elements within the same document, you can easily pass variables between different sections of the form without any complications.

<!DOCTYPE html>
<html>
<head>
    <title>PHP Form Without Frames</title>
</head>
<body>
    <form method="post" action="process_form.php">
        <label for="name">Name:</label>
        <input type="text" id="name" name="name">
        
        <label for="email">Email:</label>
        <input type="email" id="email" name="email">
        
        <input type="submit" value="Submit">
    </form>
</body>
</html>