This function will download images from another site , resize them and put suffix (if needed).
function download_resized_jpeg($filename,$width,$height,$suffix){ |
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$name = explode('/',$filename); |
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$newfilename = end($name); |
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// Content type |
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//header('Content-Type: image/jpeg'); |
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list($width_orig, $height_orig, $type) = getimagesize($filename); |
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$ratio_orig = $width_orig/$height_orig; |
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if ($width/$height > $ratio_orig) { |
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$width = $height*$ratio_orig; |
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} else { |
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$height = $width/$ratio_orig; |
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} |
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// Resample |
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$image_p = imagecreatetruecolor($width, $height); |
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if ($type == 1) |
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{ |
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$image = imagecreatefromgif($filename); |
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} |
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elseif ($type == 2) |
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{ |
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$image = imagecreatefromjpeg($filename); |
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} |
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elseif ($type == 3) |
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{ |
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$image = imagecreatefrompng($filename); |
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} |
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else |
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{ |
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$image = imagecreatefromwbmp($filename); |
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} |
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if($type==1 or $type==3) //this code below should preserve transparency but I couldn't try it out for now... |
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{ |
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imagealphablending($image_p, false); |
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imagesavealpha($image_p, true); |
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imagecolortransparent($image_p, imagecolorallocatealpha($image_p, 0, 0, 0, 127)); |
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} |
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imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig); |
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// Output |
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if ($type == 1) |
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imagegif ($image_p, "../pictures/$newfilename$suffix".".gif", 100); |
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elseif ($type == 2) |
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imagejpeg($image_p, "../pictures/$newfilename$suffix".".jpg", 100); |
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elseif ($type == 3) |
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imagepng ($image_p, "../pictures/$newfilename$suffix".".png", 0); |
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else |
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imagewbmp ($image_p, "../pictures/$newfilename$suffix".".bmp", 100); |
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} |