How can PHP developers effectively debug and troubleshoot issues with contact forms?

To effectively debug and troubleshoot issues with contact forms in PHP, developers can start by checking for any syntax errors, ensuring that all variables are properly defined, and verifying that the form is submitting data correctly. They can also use tools like error logs, var_dump, and print_r to track down any issues. Additionally, testing the form with different inputs can help identify potential bugs. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = $_POST['name'];
    $email = $_POST['email'];
    $message = $_POST['message'];

    // Add validation and sanitization code here

    // Send email
    $to = "recipient@example.com";
    $subject = "Contact Form Submission";
    $headers = "From: $email";
    $body = "Name: $name\nEmail: $email\nMessage: $message";

    if (mail($to, $subject, $body, $headers)) {
        echo "Message sent successfully";
    } else {
        echo "Failed to send message";
    }
}
?>

Keywords

Xdebug error logs var_dump PHPMailer SMTP debugging

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