How can the use of functions like imageCreateFromType() and imageCopyResized() in PHP be optimized to prevent image quality degradation?
When using functions like imageCreateFromType() and imageCopyResized() in PHP to manipulate images, it is important to set the interpolation method to preserve image quality. This can be achieved by using the imagecopyresampled() function instead of imageCopyResized() and setting the interpolation method to imageantialias(). This will prevent image quality degradation when resizing images.
// Load the original image
$source = imageCreateFromType('original.jpg');
// Create a new image with the desired dimensions
$destination = imagecreatetruecolor($newWidth, $newHeight);
// Copy and resize the original image to the new image using imagecopyresampled()
imagecopyresampled($destination, $source, 0, 0, 0, 0, $newWidth, $newHeight, $originalWidth, $originalHeight);
// Output the new image
imagejpeg($destination, 'resized.jpg');
// Free up memory
imagedestroy($source);
imagedestroy($destination);