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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
119 | $orphans = $wpdb->get_results( "SELECT SQL_CALC_FOUND_ROWS * FROM $wpdb->posts WHERE post_type = 'attachment' AND post_parent < 1 LIMIT $start, 25" ); |
120 | $page_links_total = ceil($wpdb->get_var( "SELECT FOUND_ROWS()" ) / 25); |
121 | } |
122 |
|
123 | $post_mime_types = array( |
124 | 'image' => array(__('Images'), __('Manage Images'), __ngettext_noop('Image (%s)', 'Images (%s)')), |
125 | 'audio' => array(__('Audio'), __('Manage Audio'), __ngettext_noop('Audio (%s)', 'Audio (%s)')), |
126 | 'video' => array(__('Video'), __('Manage Video'), __ngettext_noop('Video (%s)', 'Video (%s)')), |
127 | ); |
128 | $post_mime_types = apply_filters('post_mime_types', $post_mime_types); |
129 |
|
130 | $avail_post_mime_types = get_available_post_mime_types('attachment'); |
131 |
|
132 | if ( isset($_GET['post_mime_type']) && !array_intersect( (array) $_GET['post_mime_type'], array_keys($post_mime_types) ) ) |
133 | unset($_GET['post_mime_type']); |
134 |
|
135 | } else { |
136 | list($post_mime_types, $avail_post_mime_types) = wp_edit_attachments_query(); |
137 | } |