WB 2.08.x

<?php

// $Id: droplets.php 1138 2009-08-25 10:18:21Z ruud $

/*

*        @version        1.0.2

*        @author                Ruud Eisinga (Ruud) John (PCWacht)

*        @date                June 2009

*

*        droplets are small codeblocks that are called from anywhere in the template. 

*         To call a droplet just use [[dropletname]]. optional parameters for a droplet can be used like [[dropletname?parameter=value&parameter2=value]]\

*

*   1.0.2, bugfix. Reused the evalDroplet function so the extracted parameters will be only available within the scope of the eval and cleared when ready.

*/

function evalDroplets ($wb_page_data) {

        global $database;

        $parameter = array();

        preg_match_all('~\[\[(.*?)\]\]~', $wb_page_data, $matches);

        foreach ($matches[1] as $match) {

                if (strpos($match,"?")) {

                        list ($droplet,$params) = explode("?",$match);

                        if(!empty($params)) {

                                $params = html_entity_decode($params,ENT_COMPAT,DEFAULT_CHARSET); // make sure we can parse the parameters correctly

                                $paramarray = explode("&",$params); //create array of parms as parm=value

                                foreach ($paramarray as $paramelement) {

                                        $parameterTemp = explode("=", $paramelement,2);

                                        if (count($parameterTemp) == 2)

                                                $parameter[$parameterTemp[0]] = htmlentities($parameterTemp[1],ENT_COMPAT,DEFAULT_CHARSET); //re-encode the parameter values

                                        else

                                                $parameter['parm'] = htmlentities($parameterTemp[0],ENT_COMPAT,DEFAULT_CHARSET);

                                }

                        }

                } else {

                        $droplet = $match;

                        $parameter = "";

                }

                $query_content = $database->query("SELECT * FROM ".TABLE_PREFIX."mod_droplets WHERE name = '$droplet' AND active = 1 ");

                if ($query_content && $query_content->numRows() > 0){

                        $fetch_content = $query_content->fetchRow();

                        $codedata = ($fetch_content['code']);

                        $newvalue = evalDroplet($codedata, $parameter, $wb_page_data);

                        if ($newvalue == "" && !$newvalue === true) 

                                $newvalue = "<font color=\"red\">Error in: $match, no correct returnvalue.</font>";

                        if ($newvalue === true) 

                                $newvalue = "";

                        $wb_page_data = str_replace("[[".$match."]]", $newvalue, $wb_page_data);

                }

        }

        return $wb_page_data;

}

function evalDroplet($droplet, $params, &$wb_page_data) {

    if(is_array($params)) extract($params, EXTR_SKIP);

        return eval($droplet);

}

?>