What best practices should be followed when structuring HTML code within PHP files to ensure validity and readability?

When structuring HTML code within PHP files, it is important to maintain readability and ensure validity by properly separating PHP logic from HTML markup. One common best practice is to use PHP echo statements to output dynamic content within HTML tags, rather than mixing PHP code directly within the HTML. Additionally, using indentation and comments can help improve code readability and maintainability. 

<?php
// Example of structuring HTML code within PHP files
$dynamic_content = "Hello, World!";
?>

<!DOCTYPE html>
<html>
<head>
    <title>PHP HTML Example</title>
</head>
<body>
    <h1><?php echo $dynamic_content; ?></h1>
    <p>This is an example of structuring HTML code within PHP files.</p>
</body>
</html>

Keywords

HTML structure PHP files validity readability best practices

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