How can PHP be utilized to handle form submissions and update the styling of an HTML page without compromising the overall structure of the code?

When handling form submissions in PHP, you can use conditional statements to determine when to update the styling of an HTML page. By incorporating PHP code within the HTML structure, you can dynamically adjust the styling based on the form data submitted without compromising the overall code structure. 

<?php
// Check if form is submitted
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form data
    $name = $_POST["name"];
    $email = $_POST["email"];
    
    // Update styling based on form data
    if ($name == "John") {
        $style = "color: blue;";
    } else {
        $style = "color: red;";
    }
} else {
    $style = "color: black;";
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>Form Styling Example</title>
</head>
<body>
    <form method="post">
        <label for="name">Name:</label>
        <input type="text" name="name" id="name">
        <label for="email">Email:</label>
        <input type="email" name="email" id="email">
        <button type="submit">Submit</button>
    </form>
    
    <p style="<?php echo $style; ?>">Hello, <?php echo $name; ?>!</p>
</body>
</html>

Keywords

PHP form submissions HTML page styling code structure update styling

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