PHP Image Compression Function

Index.php

function compress($source, $destination, $quality) {
	$info = getimagesize($source);
	if ($info['mime'] == 'image/jpeg') {
		$image = imagecreatefromjpeg($source);
	} elseif ($info['mime'] == 'image/gif') {
		$image = imagecreatefromgif($source);
	} elseif ($info['mime'] == 'image/png') {
		$image = imagecreatefrompng($source);
	}
	imagejpeg($image, $destination, $quality);
	return $destination;
}