Are there any best practices or recommended steps to follow when working with PNG images in PHP to avoid transparency issues?

When working with PNG images in PHP, one common issue is transparency problems, where the transparency of the image is not preserved or displayed correctly. To avoid this issue, it is recommended to use the `imagealphablending()` and `imagesavealpha()` functions in PHP to properly handle transparency in PNG images.

// Load the PNG image
$image = imagecreatefrompng('image.png');

// Enable alpha blending
imagealphablending($image, true);

// Save alpha channel
imagesavealpha($image, true);

// Output the image
header('Content-Type: image/png');
imagepng($image);

// Free up memory
imagedestroy($image);