<?

/*
JPEG / PNG Image Resizer
Parameters (passed via URL):

img = path / url of jpeg or png image file

percent = if this is defined, image is resized by it's
          value in percent (i.e. 50 to divide by 50 percent)

w = image width

h = image height

constrain = if this is parameter is passed and w and h are set
            to a size value then the size of the resulting image
            is constrained by whichever dimension is smaller

Requires the PHP GD Extension

Outputs the resulting image in JPEG Format

By: Michael John G. Lopez - www.sydel.net
Filename : imgsize.php
*/

error_reporting(0);

function CreateSquareThumb($source, $new_width, $new_height, $border = 0)
{
	$source = "user_images/$source";

	$sourcedate = 0;

	if (file_exists($dest))
	{
		clearstatcache();
		$sourceinfo = stat($source);
		$sourcedate = $sourceinfo[10];
	}

	$imgsize = GetImageSize($source);
	$width = $imgsize[0];
	$height = $imgsize[1];

	if ($width > $height) {
		$xoord = ceil(($width - $height) / 2 );
		$width = $height;
	} else {
		$yoord = ceil(($height - $width) / 2);
		$height = $width;
	}

	$new_im = ImageCreatetruecolor($new_width,$new_height);
	$im = @ImageCreateFromJPEG ($source) or 
	$im = @ImageCreateFromPNG ($source) or 
	$im = @ImageCreateFromGIF ($source) or 
	$im = false; 

	imagecopyresampled($new_im,$im,0,0,$xoord,$yoord,$new_width,$new_height,$width,$height);
	ImageJPEG($new_im, null, 90);
}

header ("Content-type: image/jpeg");

$img = $_GET['img'];
$constrain = $_GET['constrain'];
$w = $_GET['w'];
$h = $_GET['h'];

CreateSquareThumb($img, $w, $h);