Change mime type pictures before save it on server

Question

I have code:

//Get image from form
$image = $_FILES['image']['tmp_name'];
//Convert to base64
$imageData = base64_encode(file_get_contents($image));
//Set mime type
header('Content-Type: image/gif');
//Decode to image
$image = base64_decode($imageData);
//Save in server
$res = file_put_contents(ROOT_DIR . "/uploads/fotos/" . $row['user_id'] . ".gif", $image);

The problem is that it is at this point header ('Content-Type: image / gif'); displays the image in the browser. How do I change the mime type does not output the result to the browser. The ultimate goal of saving all the images on a server in the format and type of gif.

Answer 1

If you are just uploading the image onto the server then you need not to use

header('Content-Type: image/gif');// remove this

it is used to output the image file to the browser. if everything is ok then to upload file use php file upload function

move_uploaded_file ( string $filename , string $destination )