What is the potential issue with multiple forms and buttons in PHP code?

When dealing with multiple forms and buttons in PHP code, the potential issue is that it can be difficult to determine which form was submitted and which button was clicked. To solve this issue, you can use hidden input fields within each form to differentiate them. By assigning a unique value to each hidden input field, you can easily identify which form was submitted. 

<form method="post">
    <input type="hidden" name="form1" value="1">
    <!-- Other form fields -->
    <button type="submit" name="submit">Submit Form 1</button>
</form>

<form method="post">
    <input type="hidden" name="form2" value="2">
    <!-- Other form fields -->
    <button type="submit" name="submit">Submit Form 2</button>
</form>

<?php
if(isset($_POST['submit'])) {
    if(isset($_POST['form1'])) {
        // Form 1 was submitted
    } elseif(isset($_POST['form2'])) {
        // Form 2 was submitted
    }
}
?>

Keywords

multiple forms buttons PHP code conflict submission

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