本文实例讲述了CI(CodeIgniter)简单统计访问人数实现方法。分享给大家供大家参考，具体如下：
废话不说，先上代码：
控制器文件：
/application/controllers/hello.php 如下：
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Hello extends CI_Controller {
public function index()
{
echo "Hello CodeIgniter!";
}
public function showval($name){
//访问路径：http://localhost/ci/index.php/hello/showval/Tom
$this->name=$name;
@$num=file_get_contents('./num.txt');//加上@屏蔽警告提示（第一次运行没有TXT文件会有警告提示）
$num=$num?$num:0;
$num++;
$arr=array('v_name'=>$name,'v_num'=>$num);
$re=fopen('./num.txt','w');
fwrite($re,$num);
fclose($re);
$this->load->view('test_views',$arr);
}
}
视图文件：
/application/views/test_views.php 如下：
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>访问统计</title> </head> <body> <?php echo $v_name;?>是第 <?php echo $v_num;?> 位访问者 </body> </html>
运行结果如下图所示：
更多关于CodeIgniter框架相关内容感兴趣的读者可查看本站专题：《codeigniter入门教程》
希望本文所述对大家基于CodeIgniter框架的PHP程序设计有所帮助。
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