How can PHP be integrated with HTML templates for form submission and validation purposes?

To integrate PHP with HTML templates for form submission and validation purposes, you can create a PHP script that handles form submission and validation. This script can be included in the HTML template using PHP tags. The PHP script can process form data, validate input, and display error messages if needed. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form data
    $name = $_POST["name"];
    $email = $_POST["email"];
    
    // Validate input
    if (empty($name)) {
        $name_error = "Name is required";
    }
    if (empty($email)) {
        $email_error = "Email is required";
    }
    
    // Display error messages or submit the form
    if (empty($name_error) && empty($email_error)) {
        // Submit the form or perform any other actions
    }
}
?>

<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
    <input type="text" name="name" placeholder="Name">
    <?php if(!empty($name_error)) { echo $name_error; } ?>
    
    <input type="email" name="email" placeholder="Email">
    <?php if(!empty($email_error)) { echo $email_error; } ?>
    
    <button type="submit">Submit</button>
</form>

Keywords

PHP HTML templates form submission validation integration

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