<?
$pic = $_GET['pic'];
$height =  $_GET['height'];
$width =  $_GET['width'];
$pref_dim =  $_GET['pd'];

$o_im = imageCreateFromJPEG($pic) ;
$o_wd = imagesx($o_im);
$o_ht = imagesy($o_im);
$arany = $o_ht/$o_wd;

$t_wd = 100;
$t_ht = $t_wd*$arany;

if (!empty($width)){
	$t_wd = $width;
	$t_ht = $t_wd*$arany;
}
if (!empty($height)){
	$t_ht = $height;
	$t_wd = $t_ht/$arany;
}
if (!empty($height)&&!empty($width)){
	if($arany>1){
		$t_ht = $height;
		$t_wd = $t_ht/$arany;
	}
	else{
		$t_wd = $width;
		$t_ht = $t_wd*$arany;
	}
	if(!empty($pd)){
		if($pd='h' and $height/$arany < $width){
			$t_ht = $height;
			$t_wd = $t_ht/$arany;
		}
		else{
			$t_wd = $width;
			$t_ht = $t_wd*$arany;
		}
	}
}

$t_im = imageCreateTrueColor($t_wd,$t_ht);
imageCopyResampled($t_im, $o_im, 0, 0, 0, 0, $t_wd, $t_ht, $o_wd, $o_ht);
header("Content-type: image/jpeg");
imageJPEG($t_im);
imageDestroy($o_im);
imageDestroy($t_im);
?>