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Implementation code for PHP+Ajax to automatically detect whether the network is connected in real time

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2016-07-25 08:55:59932browse
  1. PHP+Ajax实时自动检测是否联网-bbs.it-home.org
  2. PHP+Ajax实时自动检测是否联网

  3. 当前网络状态:

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2,php代码

  1. //检测网络连接,是否已联网
  2. public function getNetLink(){
  3. header("cache-control:no-cache,must-revalidate");
  4. header("Content-Type:text/html;charset=utf-8");
  5. $file=fopen("http://bbs.it-home.org/", "r");
  6. if (!$file){
  7. $shownetlink = "网络连接失败";
  8. }else{
  9. $shownetlink = "网络连接正常";
  10. }
  11. echo $shownetlink;
  12. }
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