wp_handle_upload_prefilter

The WordPress Core wp handle upload prefilter hook.

Description

add_filter( 'wp_handle_upload_prefilter', (string) $check_upload_size ); 

Parameters (1)

0. $check_upload_size (string) => 'check_upload_size'
The check upload size.

Usage

To run the hook, copy the example below.
  1. $check_upload_size = apply_filters( 'wp_handle_upload_prefilter', $check_upload_size ); 
  2.  
  3. if ( !empty( $check_upload_size ) ) { 
  4.  
  5. // everything has led up to this point... 
  6.  
  7.  
The following example is for adding a hook callback.
  1. // define the wp_handle_upload_prefilter callback 
  2. function filter_wp_handle_upload_prefilter( $check_upload_size ) { 
  3. // make filter magic happen here... 
  4. return $check_upload_size
  5. }; 
  6.  
  7. // add the filter 
  8. add_filter( 'wp_handle_upload_prefilter', 'filter_wp_handle_upload_prefilter', 10, 1 ); 
To remove a hook callback, use the example below.
  1. // remove the filter 
  2. remove_filter( 'wp_handle_upload_prefilter', 'filter_wp_handle_upload_prefilter', 10, 1 ); 

Defined (1)

The filter is defined in the following location(s).

/wp-admin/includes/ms-admin-filters.php  
  1. add_filter( 'wp_handle_upload_prefilter', 'check_upload_size' );