Filters the number of items to list per page when listing media items.
$media_per_pageintwp-admin/includes/post.php:1348wp_edit_attachments_query_vars() * Filters the number of items to list per page when listing media items. * * @since 2.9.0 * * @param int $media_per_page Number of media to list. Default 20. */ $q['posts_per_page'] = apply_filters( 'upload_per_page', $media_per_page ); $post_mime_types = get_post_mime_types(); if ( isset( $q['post_mime_type'] ) && ! array_intersect( (array) $q['post_mime_type'], array_keys( $post_mime_types ) ) ) { unset( $q['post_mime_type'] ); }Introduced in 2.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.