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Source View: {$action}_prefilter

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Line Code
745       * Filters the data for a file before it is uploaded to WordPress.
746       *
747       * The dynamic portion of the hook name, `$action`, refers to the post action.
748       *
749       * @since 2.9.0 as 'wp_handle_upload_prefilter'.
750       * @since 4.0.0 Converted to a dynamic hook with `$action`.
751       *
752       * @param string[] $file An array of data for a single file.
753       */
754      $file = apply_filters( "{$action}_prefilter", $file );
755
756      // You may define your own function and pass the name in $overrides['upload_error_handler'].
757      $upload_error_handler = 'wp_handle_upload_error';
758      if ( isset( $overrides['upload_error_handler'] ) ) {
759           $upload_error_handler = $overrides['upload_error_handler'];
760      }
761
762      // You may have had one or more 'wp_handle_upload_prefilter' functions error out the file. Handle that gracefully.
763      if ( isset( $file['error'] ) && ! is_numeric( $file['error'] ) && $file['error'] ) {