<? 

/* 
=================================== 
+ yThumb Class 
+ Author: Yunus Emre Yilmaz 
+ http://yns.zaxaz.com/ythumb.yns  
=================================== 
*/ 

class yThumb { 
         
    // find extension of file 
    function find_extension($file) { 
    $array = explode('.',$file); 
    $key   = count($array) -1; 
    $ext   = $array[$key]; 
    return $ext; 
    } 

    function thumb($image,$w,$h) { 
    if($this->find_extension($image) == 'jpg') $image_data = imagecreatefromjpeg($image); 
    if($this->find_extension($image) == 'gif') $image_data = imagecreatefromgif ($image); 
    if($this->find_extension($image) == 'png') $image_data = imagecreatefrompng ($image); 
     
    // Original width && height 
    $width  = imagesx($image_data); 
    $height = imagesy($image_data);  
     
    // Control width && and height 
    if(@$w > 800 || @$h > 800) { 
        $w= $width; $h= $height; 
    } 
    
	/*Birol Ekleme*/
	if( ($w) && (!$h) ) {
	  $h = ( $height / $width ) * $w;
	} else {
		if(@empty($w)) $w = 140; 
		if(@empty($h)) $h = 100;
    }
	
	
    $new = imagecreatetruecolor($w, $h); 
    imagecopyresampled($new, $image_data, 0, 0, 0, 0, $w, $h, $width, $height);  
     
    // Finally, output.. 
    if($this->find_extension($image) == 'jpg') $image_data = imagejpeg($new); 
    if($this->find_extension($image) == 'gif') $image_data = imagegif ($new); 
    if($this->find_extension($image) == 'png') $image_data = imagepng ($new); 

    // Flush memory 
    imagedestroy($image_data); 
    imagedestroy($new); 
    } 
     
} 

$a = new yThumb(); 
$a->thumb($_GET["image"],@$_GET["w"],@$_GET["h"]); 


?>