索引

	
	function updateviews($aid, $expiretime=60)
	{ 
		$logfile = ROOTPATH."cache/article_view.log";
		$logfile_flag = ROOTPATH."cache/article_view.lock";
		//记录点击
		write_file($logfile, $aid."\r\n", "a");
		
		//更新点击
		$expiretime = 60*3 ;	//多久执行一次更新。如果您的服务器压力比较大，可以将此值改大点
		//如果$expireTime没有更新过，就执行更新，将文件中的点击更新到数据库中	
		if(!file_exists($logfile_flag) || (time() - fileatime($logfile_flag)) > $expiretime ) {
			touch($logfile_flag);
			
			$viewlog = $viewarray = array();
			if(@$viewlog = file($logfile)) {
				@unlink($logfile);
				$viewlog = array_count_values($viewlog);
				foreach($viewlog as $id => $views) {
					$viewarray[$views] .= ($id > 0) ? ','.intval($id) : '';
				}
				foreach($viewarray as $views => $ids) {
					$c = rand($views*2, $views*5) ;
					if(empty($ids)) continue;
					$sql = "UPDATE LOW_PRIORITY ".$this->db->prep_tablename($this->article_table)." SET view_count = view_count +'$c' WHERE id IN (0$ids)" ;
					$this->db->query($sql);
				}
			}
		} 
 
	}

到顶部