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Opened 6 years ago

Closed 6 years ago

Last modified 6 years ago

#28878 closed enhancement (invalid)

Create a filter to customize the fileupload_maxk value

Reported by: virgodesign Owned by:
Milestone: Priority: normal
Severity: normal Version: 3.9.1
Component: Upload Keywords:
Focuses: Cc:


In a wordpress multisite environment the max uploadable file size is setted globally at network level and it is unique for all blogs.
It's not possible to customize it, for example, for specific themes or user role.
Applying a filter to this value it will give the ability to customize the max file upload size.

Change History (4)

#1 @ocean90
6 years ago

There are some filters inget_site_option() which you could use:

  • pre_site_option_fileupload_maxk
  • default_site_option_fileupload_maxk
  • site_option_fileupload_maxk

#2 @DrewAPicture
6 years ago

  • Milestone Awaiting Review deleted
  • Resolution set to invalid
  • Status changed from new to closed

Hi virgodesign,

This is currently possible in multiple ways:

  • For core upload workflows, by filtering on the upload_size_limit hook just as core already does for Multisite in wp-includes/ms-functions.php, but on a later priority. For example:
 * Filter the upload size limit for non-administrators.
 * @param string $size Upload size limit (in bytes).
 * @return int (maybe) Filtered size limit.
function filter_upload_size_limit( $size ) {
        $site = get_current_site();

        // Set the upload size limit to 10 MB for non-administrators of site 1.
        if ( ! current_user_can( 'manage_options' ) && 1 === $site->id ) {
                // 10 MB.
                $size = 1024 * 10000;
        return $size;
add_filter( 'upload_size_limit', 'filter_upload_size_limit', 20 );
  • Directly, as alluded to by @ocean90 above. For instance, filtering the option on the pre_site_option_{$option} hook (pre_site_option_fileupload_maxk) would do it, though the issue there is that the core filter, upload_size_limit_filter takes the lowest of the incoming size and option value for core upload workflows.

#3 follow-up: @virgodesign
6 years ago

Thank you very much and sorry for the mistake.

#4 in reply to: ↑ 3 @DrewAPicture
6 years ago

Replying to virgodesign:

Thank you very much and sorry for the mistake.

No problem. It was a good suggestion :)

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