What are the common pitfalls to avoid when integrating PHP code with HTML output in web development projects?

One common pitfall to avoid when integrating PHP code with HTML output is mixing PHP logic with HTML markup, which can make the code harder to read and maintain. To solve this, it's recommended to separate PHP logic from HTML markup by using PHP tags only for dynamic content and keeping HTML markup in separate files or sections. 

<?php
// Bad practice: mixing PHP logic with HTML markup
echo "<h1>Welcome, " . $username . "!</h1>";

// Good practice: separating PHP logic from HTML markup
?>
<h1>Welcome, <?php echo $username; ?>!</h1>

Keywords

PHP HTML output integration web development errors

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