What are some potential pitfalls of mixing PHP code with HTML in the way it is done in the provided forum thread?

Mixing PHP code with HTML can make the code harder to read and maintain, as it can lead to a cluttered and confusing structure. It can also make it more difficult to debug issues as the code becomes intertwined. To solve this issue, it's recommended to separate PHP logic from HTML presentation by using a templating engine like Twig or creating separate PHP files for logic and HTML. 

<?php
// Separate PHP logic from HTML presentation
$variable = "Hello, World!";
?>

<!DOCTYPE html>
<html>
<head>
    <title>Example Page</title>
</head>
<body>
    <h1><?php echo $variable; ?></h1>
</body>
</html>

Keywords

PHP HTML code mixing security vulnerability XSS

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