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
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<?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>.$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("
",$fields[$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>.$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>.$all[name].</a>;
array_unshift($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`
然后，内容——模型管理——选择一个模型添加新字段，如图。
立即学习“PHP免费学习笔记（深入）”；
最后，在要调用产品筛选的栏目模板页添加标签 ，如下。
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<span>性别：</span>
{loop filters(xingbie,$modelid) $r}
{$r[menu]}
{/loop}
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{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"}
推荐教程：《phpcms》
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