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How to determine if the page is closed in php

王林
王林Original
2020-10-12 10:41:103081browse

How to determine whether the page is closed in php: You can use the connection_status() function to determine. If the function returns 0, it means the connection was operating normally; if it returns 1, it means the connection was terminated by user or network error.

How to determine if the page is closed in php

Related function introduction:

connection_status() function returns the current connection status.

(Recommended tutorial: php video tutorial)

Possible values ​​that can be returned:

  • 0 - CONNECTION_NORMAL - Connection operation OK

  • 1 - CONNECTION_ABORTED - Connection terminated by user or network error

  • 2 - CONNECTION_TIMEOUT - Connection timed out

  • 3 - CONNECTION_ABORTED & CONNECTION_TIMEOUT

Code implementation:

echo str_repeat(" ",3000);
ignore_user_abort(true); 
mylog('online');
while (true) {
   /*
   * 1、程序正常结束   connection_status 0
   * 2、点击浏览器“停止”按钮   connection_status 1
   * 3、超时  connection_status 2
   */
 echo "test<br>\n"; //注意程序一定要有输出,否则ABORTED状态是检测不到的
 flush();
 sleep(1);
 if (connection_status()!=0){
    mylog(&#39;offline&#39;);
    die(&#39;end the script&#39;);
 }
}
function mylog($str)
{
   $fp = fopen(&#39;e:/abort.txt&#39;, &#39;a&#39;);
   $str = date(&#39;Y-m-d H:i:s&#39;).$str."\r\n";
   fwrite($fp, $str);
   fclose($fp);
}

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