What are some common pitfalls to avoid when creating and displaying images using PHP?

One common pitfall to avoid when creating and displaying images using PHP is not properly sanitizing user input. This can lead to security vulnerabilities such as SQL injection or cross-site scripting attacks. To mitigate this risk, always validate and sanitize user input before using it to create or display images. 

// Sanitize user input before using it to create or display images
$user_input = filter_input(INPUT_POST, 'user_input', FILTER_SANITIZE_STRING);
// Use the sanitized user input in your image creation or display code

Keywords

GD library imagecreatefromjpeg imagepng memory_limit imagejpeg

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