Unable to create thumb, image is black

Question

Am uploading Multiple image from single input and create thumb form all uploaded image on fly But when i run code i get only black image but orginal image is same as upl

Answer 1

This is my code for uploading multiple files and cropping and cropping them.

It uploads the image to a folder, then picks the image, crops it , re-uploads the cropped image and deletes the original image.

Am sure you can play around with this

This is the php code

if(isset($_POST['upload_gal']))
{

$fk_id = $_POST['fk_id'];


$errors= array();
foreach($_FILES['files']['tmp_name'] as $key => $tmp_name ){
    $file_name = $key.$_FILES['files']['name'][$key];
    $file_size =$_FILES['files']['size'][$key];
    $file_tmp =$_FILES['files']['tmp_name'][$key];
    $file_type=$_FILES['files']['type'][$key];


   if($file_type=='image/jpeg'||$type=='image/gif'||$type=='image/bmp'||$type=='image/png')
             {
    $image_info = getimagesize($_FILES["files"]["tmp_name"][$key]);
    $image_width = $image_info[0];
    $image_height = $image_info[1];

                 $desired_dir="brand_images/";

    if(empty($errors)==true){
        if(is_dir($desired_dir)==false){
            mkdir("$desired_dir", 0755);        // Create directory if it does not exist
        }




            $locationing="brand_images/$file_name";
            move_uploaded_file($file_tmp,$locationing);


             $image = imagecreatefromstring(file_get_contents("brand_images/$file_name"));
        $rand = rand(111,43943749739349343);
        $filename = "brand_images/$rand-33$file_name";

         if($image_width >= 840 && $image_height >= 680)
        {
        $thumb_width = 1200;
        $thumb_height = 700;
        }else{
        $thumb_width = 800;
        $thumb_height = 533;
        }

        $width = imagesx($image);
        $height = imagesy($image);

        $original_aspect = $width / $height;
        $thumb_aspect = $thumb_width / $thumb_height;

        if ( $original_aspect >= $thumb_aspect )
        {
           // If image is wider than thumbnail (in aspect ratio sense)
           $new_height = $thumb_height;
           $new_width = $width / ($height / $thumb_height);
        }
        else
        {
           // If the thumbnail is wider than the image
           $new_width = $thumb_width;
           $new_height = $height / ($width / $thumb_width);
        }

        $thumb = imagecreatetruecolor( $thumb_width, $thumb_height );

        // Resize and crop
        imagecopyresampled($thumb,
               $image,
               0 - ($new_width - $thumb_width) / 2, // Center the image horizontally
               0 - ($new_height - $thumb_height) / 2, // Center the image vertically
               0, 0,
               $new_width, $new_height,
               $width, $height);
        imagejpeg($thumb, $filename, 80);

                                                       move_uploaded_file($tmp_name, $filename);


mysql_query("INSERT INTO gallery VALUES('','brand_images/$rand-33$file_name','$fk_id')");

        echo"";
        }

This is the html

       
Upload a new image
        

       
      
     Upload image: 
     
If image is larger than 800x533, the image would be cropped