function thumbnail($image, $width, $height, $extension)
{
$data = getImageSize($image);
$imageInfo["width"] = $data[0];
$imageInfo["height"] = $data[1];
$imageInfo["type"] = $data[2];
switch ($imageInfo["type"]) {
case 1:
$img = imagecreatefromgif($image);
break;
case 2:
$img = imageCreatefromjpeg($image);
break;
case 3:
$img = imageCreatefrompng($image);
break;
default:
return false;
}
$size["width"] = $imageInfo["width"];
$size["height"] = $imageInfo["height"];
if ($width < $imageInfo["width"]) {
$size["width"] = $width;
}
if ($height < $imageInfo["height"]) {
$size["height"] = $height;
}
if ($imageInfo["width"] * $size["width"] > $imageInfo["height"] * $size["height"]) {
$size["height"] = round($imageInfo["height"] * $size["width"] / $imageInfo["width"]);
} else {
$size["width"] = round($imageInfo["width"] * $size["height"] / $imageInfo["height"]);
}
$newImg = imagecreatetruecolor($size["width"], $size["height"]);
$otsc = imagecolortransparent($img);
if ($otsc >= 0 && $otsc <= imagecolorstotal($img)) {
$tran = imagecolorsforindex($img, $otsc);
$newt = imagecolorallocate($newImg, $tran["red"], $tran["green"], $tran["blue"]);
imagefill($newImg, 0, 0, $newt);
imagecolortransparent($newImg, $newt);
}
imagecopyresized($newImg, $img, 0, 0, 0, 0, $size["width"], $size["height"], $imageInfo["width"], $imageInfo["height"]);
imagedestroy($img);
$newName = str_replace('.', $extension . '.', $image);
switch ($imageInfo["type"]) {
case 1:
$result = imageGif($newImg, $newName);
break;
case 2:
$result = imageJPEG($newImg, $newName);
break;
case 3:
$result = imagepng($newImg, $newName);
break;
}
imagedestroy($newImg);
}
if (file_exists($thumbnail)) {
// echo "The thumbnail $thumbnail exists";
} else {
// create the thumbnail directory for writing
create_directory($full_ftp_path, $thumbnail_dir, $path_to_images, $ftp_hostname, $ftp_username, $ftp_password);
// location of the original image
$sourcefile = "{$path_to_images}/{$item['0']}";
// output file
$targetfile = $thumbnail;
/* Create a new image object (not neccessarily true colour) */
$source_id = null;
// prep according to image type
if (preg_match('/(jpg|jpeg)$/i', $sourcefile)) {
$source_id = imageCreatefromjpeg("{$sourcefile}");
} elseif (preg_match('/(png)$/i', $sourcefile)) {
$source_id = imageCreatefrompng("{$sourcefile}");
} elseif (preg_match('/(gif)$/i', $sourcefile)) {
$source_id = imageCreatefromgif("{$sourcefile}");
} else {
die("Unknown image file type");
}
/* Get the dimensions of the source picture */
$source_width = imagesx($source_id);
$source_height = imagesy($source_id);
// scale or crop during thumbnail resize
$scale = max($thumbnail_max_width / $source_width, $thumbnail_max_height / $source_height);
if ($scale < 1) {
$thumbnail_actual_width = floor($scale * $source_width);
$thumbnail_actual_height = floor($scale * $source_height);
$target_id = imagecreatetruecolor($thumbnail_actual_width, $thumbnail_actual_height);
if (function_exists('imagecopyresampled')) {
function resize($path, $size)
{
$array = getimagesize($path);
$width_orig = $array[0];
$height_orig = $array[1];
if ($width_orig <= $height_orig) {
$nwidth = $size * $width_orig / $height_orig;
$nheight = $size;
} else {
$nwidth = $size;
$nheight = $size * $height_orig / $width_orig;
}
$nwidth = intval($nwidth);
$nheight = intval($nheight);
$image_p = imagecreatetruecolor($nwidth, $nheight);
switch ($array[2]) {
case 1:
case 2:
$image = imageCreatefromjpeg($path);
break;
case 3:
$image = imageCreatefrompng($path);
break;
default:
return FALSE;
break;
}
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $nwidth, $nheight, $width_orig, $height_orig);
switch ($array[2]) {
case 1:
case 2:
imagejpeg($image_p, $path, 80);
break;
case 3:
imagepng($image_p, $path);
default:
return FALSE;
break;
}
}
private function getImg($name, $imgInfo)
{
$srcPic = $this->path . $name;
switch ($imgInfo["type"]) {
case 1:
//gif
$img = imagecreatefromgif($srcPic);
break;
case 2:
//jpg
$img = imageCreatefromjpeg($srcPic);
break;
case 3:
//png
$img = imageCreatefrompng($srcPic);
break;
default:
return false;
}
return $img;
}
