This article mainly introduces the relevant information of PHP Ajax to detect whether the network is normal. The example code is attached here. Friends in need can refer to it.

The specific implementation method is as follows:

html part code:

PHP+Ajax实时自动检测是否联网
当前网络状态：

php part code:

public function getNetLink(){ 
 header("cache-control:no-cache,must-revalidate"); 
 header("Content-Type:text/html;charset=utf-8"); 
 $file=fopen("http://www.baidu.com/", "r"); 
 if (!$file){ 
  $shownetlink = "网络连接失败"; 
 }else{ 
  $shownetlink = "网络连接正常"; 
 } 
 echo $shownetlink; 
}

The above is the entire content of this article, I hope it will be helpful to everyone's study.

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