PHPCMS文章筛选分类：快速精准定位目标内容

phpcms文章如何筛选分类

phpcms文章筛选分类的方法：

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URL  
        if (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。

最后，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 >{str_cut($r[title],28)}</span>  
            </li>  
            {/loop}  
        </ul>  
        <div id="pages" class="text-c">{$pages}</div>  
    {/pc}

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