Reduce Image Size

Reduce_Image_Size.php

<?php
function reduce_image_size($userfile_name, $userfile_type)
{
	//get the file and figure out what type of file it is and some of its attributes
	switch ($userfile_type)
	{
		case "image/pjpeg": $tempbig = imagecreatefromjpeg(IMG_PATH.$userfile_name);  break;
		case "image/jpeg": $tempbig = imagecreatefromjpeg(IMG_PATH.$userfile_name);  break;
		case "image/jpg": $tempbig = imagecreatefromjpeg(IMG_PATH.$userfile_name);  break;
		case "image/gif": $tempbig = imagecreatefromgif(IMG_PATH.$userfile_name);  break;
		case "image/x-png": $tempbig = imagecreatefrompng(IMG_PATH.$userfile_name);  break;
		case "image/png": $tempbig = imagecreatefrompng(IMG_PATH.$userfile_name);  break;
	}
	 
	$bigsize = getimagesize(IMG_PATH.$userfile_name);
	$bigwidth = $bigsize[0];
	$bigheight = $bigsize[1];
	
	//If the image is wider than it is tall, or if it is square, and if it is wider than 650 px
	if ($bigwidth >= $bigheight && $bigwidth > 650)
	{
		$ratio = ($bigwidth/650);
		$newheight = ($bigheight/$ratio);
		$tempmed = imagecreatetruecolor(650, $newheight); //create temp images to be moved
		
		imagecopyresampled($tempmed, $tempbig, 0, 0, 0, 0, 650, $newheight, $bigwidth, $bigheight);
		
		switch ($userfile_type) //move temp images into real folder
		{
			case "image/pjpeg": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/jpeg": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/jpg": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/gif": imagegif($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/x-png": imagepng($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/png": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
		}
		imagedestroy($tempbig);
		imagedestroy($tempmed); //destroy temp images 
	}
	
	//If the image is taller than it is wide, and it is taller than 650 px
	elseif ($bigheight > $bigwidth && $bigheight > 600)
	{
		$ratio = ($bigheight/600);
		$newwidth = ($bigwidth/$ratio);
		$tempmed = imagecreatetruecolor($newwidth, 600); //create temp images to be moved
		
		imagecopyresampled($tempmed, $tempbig, 0, 0, 0, 0, $newwidth, 600, $bigwidth, $bigheight);
		
		switch ($userfile_type) //move temp images into real folder
		{
			case "image/pjpeg": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/jpeg": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/jpg": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/gif": imagegif($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/x-png": imagepng($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/png": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
		}
		
		imagedestroy($tempbig);
		imagedestroy($tempmed); //destroy temp images
	}
	//If the image is less than 600 px tall or 650 px wide we just copy it to the new folder
	else
	{
		$tempmed = imagecreatetruecolor($bigwidth, $bigheight); //create temp images to by moved
		
		imagecopyresampled($tempmed, $tempbig, 0, 0, 0, 0, $bigwidth, $bigheight, $bigwidth, $bigheight);
		
		switch ($userfile_type) //move temp images
		{
			case "image/pjpeg": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/jpeg": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/jpg": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/gif": imagegif($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/x-png": imagepng($tempmed, RESIZED_PATH.$userfile_name, 95); break;
			case "image/png": imagejpeg($tempmed, RESIZED_PATH.$userfile_name, 95); break;
		}
		
		imagedestroy($tempbig); 
		imagedestroy($tempmed); //destroy temp images
	}
}
?>