What are the potential issues with mixing PHP code in HTML files?

Mixing PHP code in HTML files can make the code harder to read and maintain. It can also lead to security vulnerabilities if not properly sanitized. To solve this issue, it's recommended to separate PHP logic from HTML content by using a template engine like Twig or Blade, or by using MVC design pattern. 

<?php
// Separate PHP logic from HTML content using a template engine
// Example using Twig template engine
require_once 'vendor/autoload.php';

$loader = new \Twig\Loader\FilesystemLoader('templates');
$twig = new \Twig\Environment($loader);

echo $twig->render('index.html', ['variable' => $value]);
?>

Keywords

PHP HTML syntax errors security vulnerabilities code readability

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