imagecreatefrompng(): is not a valid PNG file

[Jassim]

Hi,

I am trying to create a mobile version of my already uploaded file using below code but getting this error

imagecreatefrompng(): is not a valid PNG file

Here is the code:

if (move_uploaded_file($_FILES['photo']['tmp_name'], $uploadedFile))
{
    $resource = imagecreatefrompng($uploadedFile);

    $small_file = imagescale($resource , 500, 400);
    $small_file = imagepng($small_file);

    $newSmallFile = "mobile-" . $gallery_uuid . '.png';
    $uploadedSmallFile = $uploaddir . $newSmallFile;

    echo $uploadedSmallFile;
    
    if (move_uploaded_file($small_file, $uploadedSmallFile))
    {
        
    }
    else
    {
        echo json_encode("error");
    }
}
else
{
    echo json_encode("error");
}

 

Kindly help..

 

Thanks,

Jassim

 

Edited July 29, 2021 by requinix
removing link

[requinix]

Trying to imagecreatefrompng() with an uploaded file will only work if the uploaded file was a PNG image. Use getimagesize() to detect whether the file is an image and, if so, what type it is.

[Jassim]

I am getting the following:

IMAGE INTO START HERE ///// Array

(

[

0

] => 1600

[

1

] => 900

[

2

] => 2

[

3

] => width="1600" height="900"

[bits

] => 8

[channels

] => 3

[mime

] => image/jpeg

)

///// IMAGE INTO END HERE<br />

 

the original file is a JPG but I copying it as PNG to standarize it so the file on my FTP after moving is a PNG

 

[Barand]

The clue is in the function name.

imagecreatefrompng() is for creating GD images from a PNG file.

Check the manual and see if can find a similar function that might be suitable for reading a jpg file.

Once you have created the image, you can then output it as a png file.