What potential pitfalls should be avoided when using PHP to create dynamic web content, such as browser games?

One potential pitfall to avoid when using PHP to create dynamic web content, such as browser games, is not properly sanitizing user input. Failing to sanitize input can leave your application vulnerable to security risks like SQL injection or cross-site scripting attacks. To mitigate this risk, always validate and sanitize user input before using it in your PHP code. 

// Example of sanitizing user input using PHP filter functions
$userInput = $_POST['user_input'];
$cleanedInput = filter_var($userInput, FILTER_SANITIZE_STRING);

Keywords

SQL injection XSS attacks session management performance optimization secure coding practices

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