What steps can be taken to debug issues related to form input handling in PHP?

To debug issues related to form input handling in PHP, you can start by checking the form method (POST or GET) and action attribute in the HTML form tag to ensure they match the PHP script handling the form submission. Additionally, you can use var_dump($_POST) or var_dump($_GET) to inspect the data being sent from the form to identify any discrepancies or errors. 

<form method="POST" action="handle_form.php">
    <input type="text" name="username">
    <input type="password" name="password">
    <button type="submit">Submit</button>
</form>

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    var_dump($_POST);
    // Handle form data processing here
}
?>

Keywords

Xdebug var_dump $_POST error_reporting form validation

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