Is it recommended to include both XML and HTML declarations in the same PHP file?

It is not recommended to include both XML and HTML declarations in the same PHP file as it can cause conflicts and parsing issues. It is best to choose one declaration type based on the content of the file. If you need to include both XML and HTML content, it is recommended to separate them into different files. 

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

Keywords

XML HTML declarations PHP file recommended

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