How can knowledge of HTML enhance the development of PHP applications?

Knowledge of HTML can enhance the development of PHP applications by allowing developers to create dynamic and interactive web pages. By understanding HTML, developers can effectively integrate PHP scripts within HTML code to generate dynamic content, handle form submissions, and interact with databases. This knowledge also enables developers to create visually appealing interfaces and improve user experience on web applications. 

<?php
// PHP code to handle form submission and interact with database
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = $_POST["username"];
    $password = $_POST["password"];
    
    // Perform database operations based on form inputs
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>PHP Form Handling</title>
</head>
<body>
    <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
        <label for="username">Username:</label>
        <input type="text" name="username" id="username">
        <label for="password">Password:</label>
        <input type="password" name="password" id="password">
        <input type="submit" value="Submit">
    </form>
</body>
</html>

Keywords

HTML PHP applications front-end development web development user interface

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