PHPCMS的产品筛选功能

如下图所示功能：

首先，用下面这些代码替换掉phpcms/libs/functions/extention.func.php的内容

<?php
/***  extention.func.php 用户自定义函数库** @copyright            (C) 2005-2010 PHPCMS* @license                http://www.phpcms.cn/license/* @lastmodify            2010-10-27*//*** 通过指定keyid形式显示所有联动菜单* @param  $keyid 菜单主id* @param  $linkageid  联动菜单id,0调用顶级* @param  $modelid 模型id* @param  $fieldname  字段名称*/
function show_linkage($keyid, $linkageid = 0, $modelid = '', $fieldname='zone') {$datas = $infos = $array = array();$keyid = intval($keyid);$linkageid = intval($linkageid);//当前菜单id$field_value = intval($_GET[$fieldname]);$urlrule = structure_filters_url($fieldname,$array,1,$modelid);if($keyid == 0) return false;$datas = getcache($keyid,'linkage');$infos = $datas['data'];foreach($infos as $k=>$v){if($v['parentid']==$field_value){$array[$k]['name'] = $v['name'];$array[$k]['value'] = $k;$array[$k]['url'] = str_replace('{'.$fieldname.'}',$k,$urlrule);$array[$k]['menu'] = $field_value == $k ? '<em>'.$v['name'].'</em>' : '<a href='.$array[$k]['url'].'>'.$v['name'].'</a>' ;}}return $array;}/*** 构造筛选URL*/                        
function structure_filters_url($fieldname,$array=array(),$type = 1,$modelid) {if(empty($array)) {$array = $_GET;} else {$array = array_merge($_GET,$array);}//TODO$fields = getcache('model_field_'.$modelid,'model');if(is_array($fields) && !empty($fields)) {ksort($fields);foreach ($fields as $_v=>$_k) {if($_k['filtertype'] || $_k['rangetype']) {if(strpos(URLRULE,'.html') === FALSE) $urlpars .= '&'.$_v.'={$'.$_v.'}';else $urlpars .= '-{$'.$_v.'}';}}}//后期增加伪静态等其他url规则管理，apache伪静态支持9个参数if(strpos(URLRULE,'.html') === FALSE) $urlrule =APP_PATH.'index.php?m=content&c=index&a=lists&catid={$catid}'.$urlpars.'&page={$page}' ;else $urlrule =APP_PATH.'list-{$catid}'.$urlpars.'-{$page}.html';//根据get传值构造URLif (is_array($array)) foreach ($array as $_k=>$_v) {if($_k=='page') $_v=1;if($type == 1) if($_k==$fieldname) continue;$_findme[] = '/{\$'.$_k.'}/';$_replaceme[] = $_v;}//type 模式的时候，构造排除该字段名称的正则if($type==1) $filter = '(?!'.$fieldname.'.)';$_findme[] = '/{\$'.$filter.'([a-z0-9_]+)}/';$_replaceme[] = '';$urlrule = preg_replace($_findme, $_replaceme, $urlrule);return         $urlrule;
}/*** 生成分类信息中的筛选菜单* @param $field   字段名称* @param $modelid  模型ID*/
function filters($field,$modelid,$diyarr = array()) {$fields = getcache('model_field_'.$modelid,'model');$options = empty($diyarr) ?  explode("\n",$fields[$field]['options']) : $diyarr;$field_value = intval($_GET[$field]);foreach($options as $_k) {$v = explode("|",$_k);$k = trim($v[1]);$option[$k]['name'] = $v[0];$option[$k]['value'] = $k;$option[$k]['url'] = structure_filters_url($field,array($field=>$k),2,$modelid);$option[$k]['menu'] = $field_value == $k ? '<em>'.$v[0].'</em>' : '<a href='.$option[$k]['url'].'>'.$v[0].'</a>' ;}$all['name'] = '全部';$all['url'] = structure_filters_url($field,array($field=>''),2,$modelid);$all['menu'] = $field_value == '' ? '<em>'.$all['name'].'</em>' : '<a href='.$all['url'].'>'.$all['name'].'</a>';array_unshift($option,$all);return $option;
}/*** 获取联动菜单层级* @param  $keyid     联动菜单分类id* @param  $linkageid 菜单id* @param  $leveltype 获取类型 parentid 获取父级id child 获取时候有子栏目 arrchildid 获取子栏目数组*/
function get_linkage_level($keyid,$linkageid,$leveltype = 'parentid') {$child_arr = $childs = array();$leveltypes = array('parentid','child','arrchildid','arrchildinfo');$datas = getcache($keyid,'linkage');$infos = $datas['data'];if (in_array($leveltype, $leveltypes)) {if($leveltype == 'arrchildinfo') {$child_arr = explode(',',$infos[$linkageid]['arrchildid']);foreach ($child_arr as $r) {$childs[] = $infos[$r];}return $childs;} else {return $infos[$linkageid][$leveltype];}}        
}// 根据linkageid递归到父级
function get_parent_url($modelid,$field,$linkageid=0,$array = array()){$modelid = intval($modelid);if(!$modelid || empty($field)) return false;$fields = getcache('model_field_'.$modelid,'model');$keyid = $fields[$field]['linkageid'];$datas = getcache($keyid,'linkage');$infos = $datas['data'];if(empty($linkageid)){$linkageid = intval($_GET[$field]);if(!$linkageid) return false;}$urlrule = structure_filters_url($field,array(),1,$modelid);$urlrule = str_replace('{$'.$field.'}',$infos[$linkageid]['parentid'],$urlrule);array_unshift($array,array('name'=> $infos[$linkageid]['name'],'url'=>$urlrule));if($infos[$linkageid]['parentid']){return get_parent_url($modelid,$field,$infos[$linkageid]['parentid'],$array);}return $array;}
/*** 构造筛选时候的sql语句*/
function structure_filters_sql($modelid) {$sql = $fieldname = $min = $max = '';$fieldvalue = array();$modelid = intval($modelid);$model =  getcache('model','commons');$fields = getcache('model_field_'.$modelid,'model');$fields_key = array_keys($fields);//TODO$sql = '`status` = \'99\'';foreach ($_GET as $k=>$r) {if(in_array($k,$fields_key) && intval($r)!=0 && ($fields[$k]['filtertype'] || $fields[$k]['rangetype'])) {if($fields[$k]['formtype'] == 'linkage') {$datas = getcache($fields[$k]['linkageid'],'linkage');$infos = $datas['data'];if($infos[$r]['arrchildid']) {$sql .=  ' AND `'.$k.'` in('.$infos[$r]['arrchildid'].')';}} elseif($fields[$k]['rangetype']) {if(is_numeric($r)) {$sql .=" AND `$k` = '$r'";} else {$fieldvalue = explode('_',$r);$min = intval($fieldvalue[0]);$max = $fieldvalue[1] ? intval($fieldvalue[1]) : 999999;$sql .=" AND `$k` >= '$min' AND  `$k` < '$max'";}} else {$sql .=" AND `$k` = '$r'";}}}return $sql;}/*** 分页，如去掉则分页会有问题*/
function makeurlrule() {if(strpos(URLRULE,'.html') === FALSE) {return url_par('page={$'.'page}');}else {$url = preg_replace('/-[0-9]+.html$/','-{$page}.html',get_url());return $url;}
}?>

然后，内容——模型管理——选择一个模型添加新字段如图

然后，在要调用产品筛选的栏目模板页添加标签如下。。。

<span>性别：</span>  
{loop filters('xingbie',$modelid) $r}
{$r[menu]}
{/loop}

{php $sql = structure_filters_sql($modelid)}
{php $urlrule = makeurlrule()}{pc:content action="lists" where="$sql" catid="$catid" num="10" order="id DESC" page="$page"  urlrule="$urlrule"}<ul class="photo-list picbig">{loop $data $r}<li><div class="img-wrap"><a href="{$r[url]}"><img src="{thumb($r[thumb],150,112)}" width="150" height="112" alt="{$r[title]}"/></a></div><span style="color:{$r[style]}">{str_cut($r[title],28)}</span></li>{/loop}</ul><div id="pages" class="text-c">{$pages}</div>{/pc}