WordPress 文章浏览量添加刷新不重复统计功能

WordPress 文章浏览量统计，页面刷新不重复统计

要实现这个功能我们需要使用记录cookie的方式来实现

首先我们需要一个添加cookie的函数，有效时间为24小时。

在主题”function.php”添加以下代码：

//添加cookie
function cwtk_add_cookie($post_id){
  $COOKNAME = 'wp_view'; //cookie名称
  $TIME = 3600 * 24;
  $PATH = '/';
  $id = $post_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);
    }
  }
}

我们需还要查看文章页面是否已经添加过cookie

//查看cookie
function check_cookie($post){
  $COOKNAME = 'wp_view';
  if(isset($_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;
}

接下来我们需要添加统计代码，如果没有cookie就计次+1有就跳过，代码如下：

function post_views_record() {
	if (is_singular()) {
		global $post;
		$post_ID = $post->ID;
    if(check_cookie($post))
    return;
    if(is_int($post)) {
    $post = get_post($post);
    }
    if(!wp_is_post_revision($post)) {
  		if ($post_ID) {
  			$post_views = (int) get_post_meta($post_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($post_ID, 'views', ($post_views + 1))) {
    				add_post_meta($post_ID, 'views', 1, true);
    			}
        }
  		}
    }
	}
}

我们还需要前台显示代码：

function my_get_post_views($before = '阅读(', $after = ')') {
	global $post;
	$post_ID = $post->ID;
	$views = (int) get_post_meta($post_ID, 'views', true);

	if( _hui('views_w_on') ){
		if( $views>=100000 ){
	        $views = '10W+';
	    }elseif( $views>=10000 ){
	        $views = '1W+';
	    }
    }

	return $before . $views . $after;
}

我们还需要将这些代码在想要的页面调用，

// 页面头部代码
function my_the_head() {
	if (is_singular()) {
		cwtk_add_cookie(get_the_ID());
	}
	_post_views_record();
}
add_action('wp_head', '_the_head');

最后在需要前台需要显示的地方添加如下代码：

<!?php echo _get_post_views() ?>