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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
1043                     $per_page = 20;
1044           }
1045
1046           if ( 'edit_comments_per_page' == $option ) {
1047                $comment_status = isset( $_REQUEST['comment_status'] ) ? $_REQUEST['comment_status'] : 'all';
1048                $per_page = apply_filters( 'comments_per_page', $per_page, $comment_status );
1049           } elseif ( 'categories_per_page' == $option ) {
1050                $per_page = apply_filters( 'edit_categories_per_page', $per_page );
1051           } else {
1052                $per_page = apply_filters( $option, $per_page );
1053           }
1054
1055           // Back compat
1056           if ( isset( $this->post_type ) )
1057                $per_page = apply_filters( 'edit_posts_per_page', $per_page, $this->post_type );
1058
1059           ?>
1060           <div class="screen-options">
1061                <?php if ( $per_page_label ) : ?>