In what situations would it be more appropriate to use imagecreatetruecolor() instead of ImageCreate() when working with image manipulation in PHP?

When working with image manipulation in PHP, it is more appropriate to use imagecreatetruecolor() instead of ImageCreate() when you need to create a true color image resource with support for transparency. This function allows you to create images with a full range of colors and transparency levels, making it ideal for tasks such as creating thumbnails or overlaying images with alpha transparency.

// Example of using imagecreatetruecolor() to create a true color image with transparency
$width = 200;
$height = 200;

// Create a true color image with transparency
$image = imagecreatetruecolor($width, $height);

// Set the background color to transparent
$transparent = imagecolorallocatealpha($image, 0, 0, 0, 127);
imagefill($image, 0, 0, $transparent);

// Save or output the image as needed
imagepng($image, 'output.png');

// Free up memory
imagedestroy($image);