PHP connection_aborted() 函数

创建一个函数（check_abort()），在客户机终止脚本时写入一条日志消息：

   <?php
  function check_abort()
   {
   if (connection_aborted())
   error_log ("Script $GLOBALS[SCRIPT_NAME]" .
   "$GLOBALS[SERVER_NAME] was aborted by the user.");
   }
  
   // Some script to be executed here
  
   // Call the check_abort function when the script ends
   register_shutdown_function("check_abort");
   ?>