<?php
header ("Content-type: image/jpeg");
$img = $_GET['img'];
if($_GET["decode"] == 1){$img = base64_decode($img);}

$percent = $_GET['percent'];
$constrain = $_GET['constrain'];
$w = $_GET['w'];
$h = $_GET['h'];
$x = @getimagesize($img);
$sw = $x[0];
$sh = $x[1];
if ($percent > 0) {
	$percent = $percent * 0.01;
	$w = $sw * $percent;
	$h = $sh * $percent;
} else {
	if (isset ($w) AND !isset ($h)) {
		$h = (100 / ($sw / $w)) * .01;
		$h = @round ($sh * $h);
	} elseif (isset ($h) AND !isset ($w)) {

		$w = (100 / ($sh / $h)) * .01;
		$w = @round ($sw * $w);
	} elseif (isset ($h) AND isset ($w) AND isset ($constrain)) {

		$hx = (100 / ($sw / $w)) * .01;
		$hx = @round ($sh * $hx);
		$wx = (100 / ($sh / $h)) * .01;
		$wx = @round ($sw * $wx);

		if ($hx < $h) {
			$h = (100 / ($sw / $w)) * .01;
			$h = @round ($sh * $h);
		} else {
			$w = (100 / ($sh / $h)) * .01;
			$w = @round ($sw * $w);
		}
	}
}

$im = @ImageCreateFromJPEG ($img) or
$im = @ImageCreateFromGIF ($img) or
$im = false;
if (!$im) {
	readfile ($img);
} else {
	$thumb = @ImageCreateTrueColor ($w, $h);
	@ImageCopyResampled ($thumb, $im, 0, 0, 0, 0, $w, $h, $sw, $sh);
	@ImageJPEG ($thumb);
}
?>