What are some best practices for handling form submissions in PHP to ensure successful delivery and error handling?

When handling form submissions in PHP, it is essential to validate user input to prevent security vulnerabilities and ensure data integrity. Additionally, implementing error handling mechanisms will help in identifying and resolving any issues that may arise during form submission. 

<?php
// Check if the form is submitted
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Validate form data
    $name = $_POST["name"];
    $email = $_POST["email"];
    
    if (empty($name) || empty($email)) {
        echo "Please fill in all required fields";
    } else {
        // Process form data
        // Send email, save to database, etc.
        
        echo "Form submitted successfully!";
    }
}
?>

Keywords

form submissions PHP error handling validation delivery

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