用XHR取消PHP脚本？

Question

I have with your help:

function send(){
  $.get("/site/send.php", function(data){
    alert(data);
  }
}

In site/send.php I have:

for($=0;$i++;$i<1000)
    sleep(1);
}
    echo "OK";

Next I have in my js file:

send();
$("#click").click(function(){
  window.stop(); // this cancel XHR
  $.get("/site/reset.php", function(data){
    alert(data);
  }
})

and in reset.php:

echo "RESET";

window.stop(); cancel my XHR but this still doesnt working OK. i cancel XHR, but still i must wait for sleep(1000) in function send(). This doesnt return anything, but still continues to execute. Only if sleep is > 1000 then /site/reset.php begins to execute.

how can i in this example cancel PHP function?

is possible check in PHP file check if XHR still isset?

Answer 1

$("#click").click(function(){
  //window.stop(); 
  return false;