Are there any common pitfalls to avoid when using an Imagehandler for dynamic image generation in PHP?

One common pitfall to avoid when using an Imagehandler for dynamic image generation in PHP is not properly sanitizing user input. This can lead to security vulnerabilities such as code injection or malicious file uploads. To prevent this, always validate and sanitize any user input before using it to generate images. 

// Validate and sanitize user input before using it in Imagehandler

$userInput = $_GET['user_input'];

// Sanitize user input using filter_var
$sanitizedInput = filter_var($userInput, FILTER_SANITIZE_STRING);

// Use the sanitized input in Imagehandler
$imageHandler->generateImage($sanitizedInput);

Keywords

Imagehandler dynamic image generation PHP common mistakes error handling

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