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Source View: {$option}

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
1048                     $per_page = 20;
1049           }
1050
1051           if ( 'edit_comments_per_page' == $option ) {
1052                $comment_status = isset( $_REQUEST['comment_status'] ) ? $_REQUEST['comment_status'] : 'all';
1053                $per_page = apply_filters( 'comments_per_page', $per_page, $comment_status );
1054           } elseif ( 'categories_per_page' == $option ) {
1055                $per_page = apply_filters( 'edit_categories_per_page', $per_page );
1056           } else {
1057                $per_page = apply_filters( $option, $per_page );
1058           }
1059
1060           // Back compat
1061           if ( isset( $this->post_type ) )
1062                $per_page = apply_filters( 'edit_posts_per_page', $per_page, $this->post_type );
1063
1064           ?>
1065           <div class="screen-options">
1066                <?php if ( $per_page_label ) : ?>