Are there any best practices for handling errors in PHP scripts that process contact form submissions?

When processing contact form submissions in PHP scripts, it is essential to handle errors properly to provide a smooth user experience. One best practice is to validate form inputs to prevent common errors such as empty fields or invalid email addresses. Additionally, implementing error handling mechanisms like try-catch blocks can help identify and display meaningful error messages to users. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = $_POST["name"];
    $email = $_POST["email"];
    $message = $_POST["message"];
    
    // Validate form inputs
    if (empty($name) || empty($email) || empty($message)) {
        echo "Please fill out all fields.";
    } elseif (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
        echo "Invalid email address.";
    } else {
        // Process form submission
        // Add code here to send the email or save the form data to a database
        echo "Form submitted successfully!";
    }
}
?>

Keywords

try-catch error handling exception handling PHPMailer form validation

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