What potential problems could arise if different image formats are used instead of JPEG in PHP scripts?

Using different image formats in PHP scripts can lead to compatibility issues and errors when trying to process or display the images. One way to solve this problem is to use PHP's GD library to convert all images to a consistent format, such as JPEG, before processing them in the script.

// Example code to convert images to JPEG format using GD library
$image = imagecreatefrompng('image.png');
imagejpeg($image, 'image.jpg', 100);
imagedestroy($image);