我们经常在网上看到一些网站,拥有多重筛选功能。例如一些房产网站上,就会经常使用多条件筛选功能,方便用户进行筛选房源。效果如下图:
自己做网站时,如何制作这样的多条件筛选功能呢?下面学做网站论坛就来介绍一下这种多条件筛选功能制作方法。
方法/步骤
创建自定义分类,增加多个筛选条件。复制下面的代码,你可以直接复制粘贴到functions.php文件中。
//给post创建四个自定义分类法
add_action
(\
'init\', \'ashu_post_type\');
function ashu_post_type() {
register_taxonomy(
\'province\',
\'post\',
array(
\'label\' => \'省\',
\'rewrite\' => array( \'slug\' => \'province\' ),
\'hierarchical\' => true
)
);
register_taxonomy(
\'city\',
\'post\',
array(
\'label\' => \'市\',
\'rewrite\' => array( \'slug\' => \'city\' ),
\'hierarchical\' => true
)
);
register_taxonomy(
\'genre\',
\'post\',
array(
\'label\' => \'类型\',
\'rewrite\' => array( \'slug\' => \'genre\' ),
\'hierarchical\' => true
)
);
register_taxonomy(
\'price\',
\'post\',
array(
\'label\' => \'价格\',
\'rewrite\' => array( \'slug\' => \'price\' ),
\'hierarchical\' => true
)
);
}
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版权声明:本文为博主原创文章,遵循 CC 4.0 BY-NC-SA 版权协议,转载请附上原文出处链接和本声明。
原文链接:https://blog.csdn.net/cpongo3/article/details/88848024
2.添加完以上代码后,应该在后台左侧菜单会多出四个自定义分类法:
3.在自己网站的主题文件夹下面建立一个page-sift.php文件,这个文件将作为筛选页面的模板文件。
4.添加重写规则,使得wordpress 网站多条件筛选功能页面也可以伪静态。将下列代码存放到 include/rewrite.php文件中:
//获取筛选页面的Url
function ashuwp_sift_link
(
)
{
return home_url
(
)
.
"/sift"
;
}
/*
*添加query变量
*/
function ashuwp_query_vars
(
$public_query_vars
)
{
$public_query_vars
[
]
=
'ashuwp_page'
;
$public_query_vars
[
]
=
'condition'
;
return
$public_query_vars
;
}
/*
*sift页面的重写规则,三种url:
*ashuwp.com/sift ashuwp.com/sift/0_0_0_0/ ashuwp.com/sift/0_0_0_0/page/2
*/
function ashuwp_rewrite_rules
(
$wp_rewrite
)
{
$new_rules
=
array
(
'sift/?$'
=>
'index.php?ashuwp_page=sift'
,
'sift/([^/]+)/?$'
=>
'index.php?ashuwp_page=sift&condition='
.
$wp_rewrite
->
preg_index
(
1
)
,
'sift/([^/]+)/page/?([0-9]{1,})/?$'
=>
'index.php?ashuwp_page=sift&condition='
.
$wp_rewrite
->
preg_index
(
1
)
.
'&paged='
.
$wp_rewrite
->
preg_index
(
2
)
)
;
$wp_rewrite
->
rules
=
$new_rules
+
$wp_rewrite
->
rules
;
}
/*
*载入模板规则
*用page-sift.php作为筛选页面的模板文件
*/
function ashuwp_template_redirect
(
)
{
global
$wp
,
$wp_query
,
$wp_rewrite
;
if
(
!
isset
(
$wp_query
->
query_vars
[
'ashuwp_page'
]
)
)
return
;
$reditect_page
=
$wp_query
->
query_vars
[
'ashuwp_page'
]
;
if
(
$reditect_page
==
"sift"
)
{
include
(get_template_directory
(
)
.
'/page-sift.php'
)
;
die
(
)
;
}
}
/*
*更新重写规则
*激活主题的时候
*/
function ashuwp_flush_rewrite_rules
(
)
{
global
$pagenow
,
$wp_rewrite
;
if
(
'themes.php'
==
$pagenow
&&
isset
(
$_GET
[
'activated'
]
)
)
$wp_rewrite
->
flush_rules
(
)
;
}
add_action
(
'load-themes.php'
,
'ashuwp_flush_rewrite_rules'
)
;
add_action
(
'generate_rewrite_rules'
,
'ashuwp_rewrite_rules'
)
;
add_action
(
'query_vars'
,
'ashuwp_query_vars'
)
;
add_action
(
"template_redirect"
,
'ashuwp_template_redirect'
)
;
5.将下面代码存放在步骤三新建的page-sift.php文件中;
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>筛选页面教程
</title>
<link rel='stylesheet' id='ashuwp-style-css' href='<?php echo get_stylesheet_uri(); ?>' type='text/css' media='all' />
</head>
<body>
<div id="site-page">
<div id="header">
<h1 id="logo">
<a href="http://www.treework.cn">treework.cn
</a>
</h1>
<h2 class="align-cenetr">阿树工作室--筛选页面教程
</h2>
</div>
<div class="container content">
<?php
//1.1 获取所有province分类,将id放入 $province_id数组
$args = array(
'taxonomy'=>'province',
'orderby'=>'id',
'hide_empty'=>0
);
$province_ob = get_categories( $args );
$province_id = array();
foreach($province_ob as $province){
$province_id[] = $province->term_id;
}
//1.2 获取所有city分类,将id放入 $city_id数组
$args = array(
'taxonomy'=>'city',
'orderby'=>'id',
'hide_empty'=>0
);
$city_ob = get_categories( $args );
$city_id = array();
foreach($city_ob as $city){
$city_id[] = $city->term_id;
}
//1.3 获取所有genre分类,将id放入 $genre_id数组
$args = array(
'taxonomy'=>'genre',
'orderby'=>'id',
'hide_empty'=>0
);
$genre_ob = get_categories( $args );
$genre_id = array();
foreach($genre_ob as $genre){
$genre_id[] = $genre->term_id;
}
//1.4 获取所有price分类,将id放入 $price_id数组
$args = array(
'taxonomy'=>'price',
'orderby'=>'id',
'hide_empty'=>0
);
$price_ob = get_categories( $args );
$price_id = array();
foreach($price_ob as $price){
$price_id[] = $price->term_id;
}
//2 参数处理
//2.1 页码
$wp_query->query_vars['paged'] > 1 ? $pagenum = $wp_query->query_vars['paged'] : $pagenum = 1;
/*2.2 从url中获取参数 即url中 0_0_0_0
*将获取到的四个参数放入 $cons 数组中
*/
global $wp_query;
if( isset($wp_query->query_vars['condition'])
&& $wp_query->query_vars['condition']!='' ){
$condition = $wp_query->query_vars['condition'];
$conditions = explode('_',$condition);
$cons = array();
if(isset($conditions[0])){
$conditions[0] = (int)$conditions[0];
}else{
$conditions[0]=0;
}
if(isset($conditions[1])){
$conditions[1] = (int)$conditions[1];
}else{
$conditions[1]=0;
}
if(isset($conditions[2])){
$conditions[2] = (int)$conditions[2];
}else{
$conditions[2]=0;
}
if(isset($conditions[3])){
$conditions[3] = (int)$conditions[3];
}else{
$conditions[3]=0;
}
//从url中获取到的各分类法分类ID是否真实存在
if( in_array($conditions[0],$province_id) ){
$cons[0]=$conditions[0];
}else{
$cons[0]=0;
}
if( in_array($conditions[1],$city_id) ){
$cons[1]=$conditions[1];
}else{
$cons[1]=0;
}
if( in_array($conditions[2],$genre_id) ){
$cons[2]=$conditions[2];
}else{
$cons[2]=0;
}
if( in_array($conditions[3],$price_id) ){
$cons[3]=$conditions[3];
}else{
$cons[3]=0;
}
$sift_link = ashuwp_sift_link().'/'.$cons[0].'_'.$cons[1].'_'.$cons[2].'_'.$cons[3];
}else{
$cons = array(0,0,0,0);
$sift_link = ashuwp_sift_link().'/0_0_0_0';
}
?>
<div class="sift_query">
<div class="sift_cons">
<div class="sift_li">
<span>省:
</span>
<a <?php if($cons[0]==0){ echo 'class="current"'; } ?> href="
<?php echo ashuwp_sift_link(); ?>/0_
<?php echo $cons[1];?>_
<?php echo $cons[2];?>_
<?php echo $cons[3];?>/">不限
</a>
<?php
foreach( $province_ob as $province ){
?>
<a href="<?php echo ashuwp_sift_link(); ?>/
<?php echo $province->term_id; ?>_
<?php echo $cons[1]; ?>_
<?php echo $cons[2]; ?>_
<?php echo $cons[3];?>"
<?php if($cons[0] == $province->term_id){ echo 'class="current"'; } ?>>
<?php echo $province->name; ?>
</a>
<?php } ?>
</div>
<div class="sift_li"><span>市:
</span><a <?php if($cons[1] == 0){ echo 'class="current"'; } ?> href="
<?php echo ashuwp_sift_link(); ?>/
<?php echo $cons[0];?>_0_
<?php echo $cons[2]; ?>_
<?php echo $cons[3];?>/">不限
</a>
<?php
foreach( $city_ob as $city ){ ?>
<a href="<?php echo ashuwp_sift_link(); ?>/
<?php echo $cons[0]; ?>_
<?php echo $city->term_id; ?>_
<?php echo $cons[2]; ?>_
<?php echo $cons[3];?>"
<?php if($cons[1] == $city->term_id){ echo 'class="current"'; } ?>>
<?php echo $city->name; ?>
</a>
<?php } ?>
</div>
<div class="sift_li"><span>类型:
</span><a <?php if($cons[2] == 0){ echo 'class="current"'; } ?> href="
<?php echo ashuwp_sift_link(); ?>/
<?php echo $cons[0];?>_
<?php echo $cons[1]; ?>_0_
<?php echo $cons[3];?>/">不限
</a>
<?php
foreach( $genre_ob as $genre ){ ?>
<a href="<?php echo ashuwp_sift_link(); ?>/
<?php echo $cons[0]; ?>_
<?php echo $cons[1]; ?>_
<?php echo $genre->term_id; ?>_
<?php echo $cons[3];?>"
<?php if($cons[2] == $genre->term_id){ echo 'class="current"'; } ?>>
<?php echo $genre->name; ?>
</a>
<?php } ?>
</div>
<div class="sift_li"><span>价格:
</span><a <?php if($cons[3] == 0){ echo 'class="current"'; } ?> href="
<?php echo ashuwp_sift_link(); ?>/
<?php echo $cons[0];?>_
<?php echo $cons[1]; ?>_
<?php echo $cons[2]; ?>_0/">不限
</a>
<?php
foreach( $price_ob as $price ){ ?>
<a href="<?php echo ashuwp_sift_link(); ?>/
<?php echo $cons[0]; ?>_
<?php echo $cons[1]; ?>_
<?php echo $cons[2]; ?>_
<?php echo $price->term_id; ?>"
<?php if($cons[3] == $price->term_id){ echo 'class="current"'; } ?>>
<?php echo $price->name; ?>
</a>
<?php } ?>
</div>
</div>
<?php
//代码来源:学做网站论坛https://www.xuewangzhan.com/ 将获取到的参数组合为query_posts的参数
$tax_query = array(
'relation'=> 'AND',
);
//province
if( $cons[0] != 0 ){
$tax_query[] = array(
'taxonomy'=>'province',
'field'=>'id',
'terms'=>$cons[0]
);
}
//city
if( $cons[1] != 0 ){
$tax_query[] = array(
'taxonomy'=>'city',
'field'=>'id',
'terms'=>$cons[1]
);
}
//genre
if( $cons[2] != 0 ){
$tax_query[] = array(
'taxonomy'=>'genre',
'field'=>'id',
'terms'=>$cons[2]
);
}
//price
if( $cons[3] != 0 ){
$tax_query[] = array(
'taxonomy'=>'price',
'field'=>'id',
'terms'=>$cons[3]
);
}
$args = array(
'paged' => $pagenum,
'tax_query'=> $tax_query
);
global $ashuwp_query;
$ashuwp_query = new WP_Query( $args );
?>
<div class="query_count">共找到
<?php echo $ashuwp_query->found_posts;?>个符合条件的内容
</div>
</div>
<?php
if($ashuwp_query->have_posts()) : ?>
<div id="post_list">
<?php while($ashuwp_query->have_posts()) : $ashuwp_query->the_post(); ?>
<div class="post">
<a href="<?php the_permalink();?>">
<?php the_title();?></a>
</div>
<?php endwhile;?>
</div>
<?php endif; ?>
<div id="ashuwp_page">
<?php
$pagination = paginate_links( array(
'base' => $links.'/page/%#%',
'format' => '/page/%#%',
'prev_text' => '上一页',
'next_text' => '下一页',
'total' => $ashuwp_query->max_num_pages,
'current' => $pagenum
) );
if ( $pagination ) {
echo $pagination;
}
?>
</div>
</div>
</div>
<!--site-page-->
<div id="footer">
<div class="container">
<p>网站底部
</p>
</div>
</div>
</body>
</html>
6.这样,wordpress 网站多条件筛选功能就制作好了。
示例下载
下载的文件为一个极简单的主题,效果预览步骤:
1.下面提供了拥有这种功能的简单的WORDPRESS 主题,下载主题并安装,并设置好伪静态
2.添加几篇文章到自定义分类法中
3.直接访问筛选页面的url,比如:URL/sift 或者URL/sift/0_1_1_0等等。
主题下载:https://pan.baidu.com/s/1a8_XxNy7B3HUA1ji84g_dA
www.ysidc.top 云速博客,IT技术,idc资讯,基础运维,原创教程,web环境部署,WordPress教程,技术分享,LAMP,LNMP,wdcp,mysql,mssql,centos,discuz教程
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原文链接:https://blog.csdn.net/cpongo3/article/details/88848024