<?php
class helper_plugin_example extends DokuWiki_Plugin {
    /**
     * Returns the column header text for the Pagelist Plugin
     * 
     * @param string $column column name as set in addColumn()
     * @param string $class by reference, class set to td of the table. Replaces that default the column name is set as class 
     * @return string text, escaped by Pagelist plugin
     */
    public function th($column=null, &$class = null) {
        if($column == 'yourcolumn') {
            $content = 'Your Column';
        } else {
            $content = $this->getLang('othercolumn');
        }
    }
    //eventually also possible, if you have only one column and not a css class per cell:
    public function th() {
        return $this->getLang('yourcolumn');
    }

    /**
     * Returns the cell data for the Pagelist Plugin
     *
     * @param string $id page id
     * @param string $column column name as set in addColumn()
     * @param string $class by reference, class set to td of the table. Replaces that default the column name is set as class 
     * @return string escaped html content for cell of table
     */
    public function td($id, $column=null, &$class = null) {
        $class .= 'special';
        if($column == 'yourcolumn') {
            $content = '...';
        } else {
            $content = '...';
        }
        return hsc($content);
    }
    //eventually also possible, if you have only one column and not a class per cell::
    public function td($id) {
        $content = '...';
        return hsc($content);
    }
}