解决WordPress文章点击数(浏览量)随页面刷新而增加的问题

2016-06-12 22:03:15 暂无评论阳光倾城网站技术 1,337

网上存在大量关于WordPress文章点击数的脚本，大部分都一样，没有解决反刷新和过滤网络爬虫的问题，不具有真实意义，如果遇到恶意CC攻击，会对服务器造成极大压力特别是数据库。

下面提供一种基于cookie的解决方案：

首先在主题的functions.php 增加如下的脚本：

***********文章浏览量防刷新统计开始*********/
function statistic_visitors() {
    if (is_singular()) {
        global $user_ID, $post;
         if(check_cookie($post))
         return;
         if(is_int($post)) {
         $post = get_post($post);
         }
         if(!wp_is_post_revision($post)) {
         //if(is_single() || is_page()) {
             $id = intval($post->ID);
             //$post_views = get_post_custom($id);
             $post_views = get_post_meta($id,’views’,true);
             //统计所有人
             $should_count = true;
             //排除机器人
             $bots = array(‘Google Bot’ => ‘googlebot’, ‘Google Bot’ => ‘google’, ‘MSN’ => ‘msnbot’, ‘Alex’ => ‘ia_archiver’, ‘Lycos’ => ‘lycos’, ‘Ask Jeeves’ => ‘jeeves’, ‘Altavista’ => ‘scooter’, ‘AllTheWeb’ => ‘fast-webcrawler’, ‘Inktomi’ => ‘slurp@inktomi’, ‘Turnitin.com’ => ‘turnitinbot’, ‘Technorati’ => ‘technorati’, ‘Yahoo’ => ‘yahoo’, ‘Findexa’ => ‘findexa’, ‘NextLinks’ => ‘findlinks’, ‘Gais’ => ‘gaisbo’, ‘WiseNut’ => ‘zyborg’, ‘WhoisSource’ => ‘surveybot’, ‘Bloglines’ => ‘bloglines’, ‘BlogSearch’ => ‘blogsearch’, ‘PubSub’ => ‘pubsub’, ‘Syndic8’ => ‘syndic8’, ‘RadioUserland’ => ‘userland’, ‘Gigabot’ => ‘gigabot’, ‘Become.com’ => ‘become.com’,’Baidu Bot’=>’Baiduspider’);
             $useragent = $_SERVER[‘HTTP_USER_AGENT’];
             foreach ($bots as $name => $lookfor) {
             if (stristr($useragent, $lookfor) !== false) {
                 $should_count = false;
                 break;
             }
             }
             if($should_count) {
             if(!update_post_meta($id, ‘views’, ($post_views+1))) {
                 add_post_meta($id, ‘views’, 1, true);
             }
             }
         //}
         }
      }

}

add_action(‘wp_head’, ‘statistic_visitors’);

function check_cookie($post){
     $COOKNAME = ‘tom_view’;
     if(isset($_COOKIE[$COOKNAME]))
         $cookie = $_COOKIE[$COOKNAME];
     else
         return false;
     $id = $post->ID;
     if(empty($id)){
         return false;
     }
     if(!empty($cookie)){
         $list = explode(‘a’, $cookie);
         if(!empty($list) && in_array($id, $list)){
             return true;
         }
     }
     return false;
}
### Function: Display The Post Views
function the_views($display = true,$id) {
     $post_views = intval(get_post_meta($id,’views’,true));
     $output = number_format_i18n($post_views);
     if($display) {
         echo $output;
     } else {
         return $output;
     }
}

### Function: Display Total Views
if(!function_exists(‘get_totalviews’)) {
     function get_totalviews($display = true) {
         global $wpdb;
         $total_views = intval($wpdb->get_var("SELECT SUM(meta_value+0) FROM $wpdb->postmeta WHERE meta_key = ‘views’"));
         if($display) {
             echo number_format_i18n($total_views);
         } else {
             return $total_views;
         }
     }
}

### Function: Add Views Custom Fields
add_action(‘publish_post’, ‘add_views_fields’);
add_action(‘publish_page’, ‘add_views_fields’);
function add_views_fields($post_ID) {
     global $wpdb;
     if(!wp_is_post_revision($post_ID)) {
         add_post_meta($post_ID, ‘views’, 0, true);
     }
}
### Function: Delete Views Custom Fields
add_action(‘delete_post’, ‘delete_views_fields’);
function delete_views_fields($post_ID) {
     global $wpdb;
     if(!wp_is_post_revision($post_ID)) {
         delete_post_meta($post_ID, ‘views’);
     }
}

// 展示点击数

function get_post_views($before = ‘(点击 ‘, $after = ‘ 次)’, $echo = 1)
{
global $post;
$post_ID = $post->ID;
$views = (int)get_post_meta($post_ID, ‘views’, true);
if ($echo) echo $before, number_format($views), $after;
else return $views;
};

/***********文章浏览量防刷新统计结束*********/

然后在主题的single.php最顶端增加如下代码（切记：必须是最顶端紧挨着<?php）：

$COOKNAME = ‘tom_view’; //cookie名称
$TIME = 3600;
$PATH = ‘/’;

$id = $posts[0]->ID;
$expire = time() + $TIME; //cookie有效期
if(isset($_COOKIE[$COOKNAME]))
     $cookie = $_COOKIE[$COOKNAME]; //获取cookie
else
     $cookie = ”;

if(empty($cookie)){
     //如果没有cookie
     setcookie($COOKNAME, $id, $expire, $PATH);
}else{
     //用a分割成数组
     $list = explode(‘a’, $cookie);
     //如果已经存在本文的id
     if(!in_array($id, $list)){
         setcookie($COOKNAME, $cookie.’a’.$id, $expire, $PATH);
     }
}