Dody Web

function resize_image( $file, $width = 0, $height = 0, $proportional = false, $output = 'file', $delete_original = true )
{
	if ( $height <= 0 &amp;&amp; $width <= 0 ) return false;
 
	$info = getimagesize($file);
	$image = '';
 
	$final_width = 0;
	$final_height = 0;
	list($width_old, $height_old) = $info;
 
   if ($proportional) {
		   if ($width == 0) $factor = $height/$height_old;
		   elseif ($height == 0) $factor = $width/$width_old;
		   else $factor = min ( $width / $width_old, $height / $height_old);
 
		   $final_width = round ($width_old * $factor);
		   $final_height = round ($height_old * $factor);
   } else {
		   $final_width = ( $width <= 0 ) ? $width_old : $width;
		   $final_height = ( $height <= 0 ) ? $height_old : $height;
   }
 
   switch ($info[2]) {
		   case IMAGETYPE_GIF:
				   $image = imagecreatefromgif($file);
		   break;
		   case IMAGETYPE_JPEG:
				   $image = imagecreatefromjpeg($file);
		   break;
		   case IMAGETYPE_PNG:
				   $image = imagecreatefrompng($file);
		   break;
		   default:
				   return false;
   }
 
   $image_resized = imagecreatetruecolor( $final_width, $final_height );
 
   if(($info[2] == IMAGETYPE_GIF) || ($info[2] == IMAGETYPE_PNG)) {
		   $trnprt_indx = imagecolortransparent($image);
 
		   // If we have a specific transparent color
		   if($trnprt_indx >= 0) {
 
				   // Get the original image's transparent color's RGB values
				   $trnprt_color    = imagecolorsforindex($image, $trnprt_indx);
 
				   // Allocate the same color in the new image resource
				   $trnprt_indx    = imagecolorallocate($image_resized, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
 
				   // Completely fill the background of the new image with allocated color.
				   imagefill($image_resized, 0, 0, $trnprt_indx);
 
				   // Set the background color for new image to transparent
				   imagecolortransparent($image_resized, $trnprt_indx);
 
 
		   }
		   // Always make a transparent background color for PNGs that don't have one allocated already
		   elseif ($info[2] == IMAGETYPE_PNG) {
 
				   // Turn off transparency blending (temporarily)
				   imagealphablending($image_resized, false);
 
				   // Create a new transparent color for image
				   $color = imagecolorallocatealpha($image_resized, 0, 0, 0, 127);
 
				   // Completely fill the background of the new image with allocated color.
				   imagefill($image_resized, 0, 0, $color);
 
				   // Restore transparency blending
				   imagesavealpha($image_resized, true);
		   }
   }
 
   imagecopyresampled($image_resized, $image, 0, 0, 0, 0, $final_width, $final_height, $width_old, $height_old);
 
   if($delete_original) @unlink($file);
 
   switch (strtolower($output)) {
		   case 'browser':
				   $mime = image_type_to_mime_type($info[2]);
				   header("Content-type: $mime");
				   $output = NULL;
		   break;
		   case 'file':
				   $output = $file;
		   break;
		   case 'return':
				   return $image_resized;
		   break;
		   default:
		   break;
   }
 
   switch ($info[2]) {
		   case IMAGETYPE_GIF:
				   imagegif($image_resized, $output);
		   break;
		   case IMAGETYPE_JPEG:
				   imagejpeg($image_resized, $output);
		   break;
		   case IMAGETYPE_PNG:
				   imagepng($image_resized, $output);
		   break;
		   default:
				   return false;
   }
 
   return true;
}

<?
  include "imgresize.php";
 
  print "mulai...";
 
  CopyResize('a.jpg','b.jpg');
 
  print "<p>selesai.";
 
  function CopyResize($src, $dst) {
    $result = @copy($src, $dst);
    if ($result) {
      resize_image($dst, 300, 200, true);
    }
    return $result;
  }
?>