Change image name on upload images wordpress

Question

When I upload images wordpress saves four files onto the server (as defined in settings->media):

1 -> thumbnailsize (150x150)
2 -> Medium size (1024x768)
3 -> Large size (1920x1080)
4 -> Original size (---x---)

I always need the large size image, but when I upload an image with a size of 1620x1080 , Wordpress will name the image some-image-1620x1080.jpg what I don't want.

Can I change in any way the imagename from some-image-1920x1080.jpg to some-image-large.jpg?

Bud Damyanov Bud Damyanov · Accepted Answer · 2014-03-26T12:22:22

You'll have to create a function in your functions.php file, which will handle the file upload and will be hooked at filter wp_handle_upload_prefilter:

add_filter('wp_handle_upload_prefilter', 'wp_rename_large_images', 1, 1);
//Check to see if function name is unique
if (!function_exists("wp_rename_large_images")) {
function wp_rename_large_images( $file ){
   //Get image size 
   $img = getimagesize($file['tmp_name']);
   //Image dimensions
   $width = $img[0];
   $height = $img[1];
   //Check to see if image is large enough to change the file name
   if ($width > 1200 || $height > 1080) {
     //Modify the file name WITH an extension
     $ext = pathinfo($file['name'], PATHINFO_EXTENSION);
     //Build the new file name (remove the old extension - last 3 characters from the file name, i.e. jpg, gif, png, bmp, etc.)
     $file['name'] = substr($file['name'], -3) . '-large'. $ext;
   }
    return $file;
}
}

Read the documentation here.

Change image name on upload images wordpress

2 Answers