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Codeigniter校验ip地址的方法_php实例

WBOY
WBOYOriginal
2016-06-07 17:13:47913browse

本文实例讲述了Codeigniter校验ip地址的方法。分享给大家供大家参考。具体分析如下:

这里演示了Codeigniter如何获取用户ip地址,同时校验ip地址的有效性

获取用户ip:

$this->input->ip_address();
//如果ip获取失败,则返回 0.0.0.0,我们也可以使用下面的代码校验ip的有效性
$ip = "192.168.1.1";
if (!$this->input->valid_ip($ip))
{
 echo " Not a valid IP address" ;
}
else
{
 echo " Valid IP address! " ;
}

希望本文所述对大家基于Codeigniter的php程序设计有所帮助。

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