What are the common pitfalls to avoid when working with image generation and display in PHP, based on the forum thread conversation?

Common pitfalls to avoid when working with image generation and display in PHP include not setting the correct content type header before outputting the image and not handling errors properly when generating or displaying images. To solve these issues, always set the content type header to 'image/png' or the appropriate image format before outputting the image data, and use error handling techniques such as try-catch blocks to handle any exceptions that may occur during image generation or display. 

// Set the content type header to 'image/png'
header('Content-Type: image/png');

// Generate and output the image
try {
    // Image generation code here
    $image = imagecreate(200, 200);
    imagepng($image);
    imagedestroy($image);
} catch (Exception $e) {
    // Handle any exceptions that occur during image generation
    echo 'An error occurred: ' . $e->getMessage();
}

Keywords

GD library imagecreatefromjpeg memory_limit imagejpeg imagepng

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