How can developers efficiently troubleshoot and debug issues related to image generation errors in PHP using GD-Library?

When troubleshooting image generation errors in PHP using GD-Library, developers can efficiently identify the issue by checking for common mistakes such as incorrect image formats, missing GD extension, or incorrect function parameters. To debug these errors, developers can use functions like `imagepng()`, `imagejpeg()`, or `imagegif()` to generate and display the image output, allowing them to see any errors or warnings thrown by the GD-Library.

// Example code snippet to troubleshoot image generation errors in PHP using GD-Library
$image = imagecreate(200, 200); // Create a new image resource
$white = imagecolorallocate($image, 255, 255, 255); // Allocate a color for the image
imagestring($image, 5, 50, 50, "Hello World!", $white); // Add text to the image

header('Content-Type: image/png'); // Set the header to display the image as PNG
imagepng($image); // Output the image as PNG

imagedestroy($image); // Free up memory by destroying the image resource