How can PHP developers ensure that the content displayed on a webpage is formatted correctly and visually appealing using PHP?

To ensure that the content displayed on a webpage is formatted correctly and visually appealing using PHP, developers can use HTML/CSS within their PHP code to style the content. This can include using CSS for layout, colors, fonts, and spacing to create a visually appealing design.

<!DOCTYPE html>
<html>
<head>
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #f0f0f0;
            color: #333;
            margin: 0;
            padding: 0;
        }
        .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
        }
        h1 {
            color: #007bff;
        }
        p {
            font-size: 16px;
            line-height: 1.5;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>Welcome to our website!</h1>
        <p>This is a paragraph of text that is styled using CSS within PHP.</p>
    </div>
</body>
</html>