How can the DOCTYPE declaration in PHP files affect the styling and layout of the webpage?

The DOCTYPE declaration in PHP files is crucial for defining the document type and ensuring proper rendering of the webpage by browsers. If the DOCTYPE declaration is missing or incorrect, it can lead to styling and layout issues on the webpage. To fix this problem, make sure to include the correct DOCTYPE declaration at the beginning of your PHP file. 

<!DOCTYPE html>
<html>
<head>
    <title>Your Page Title</title>
</head>
<body>
    <?php
    // Your PHP code here
    ?>
</body>
</html>

Keywords

DOCTYPE declaration PHP files styling layout webpage

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