不要等待响应并立即打印结果

Question

I have a function sendSMSMessage() and it runs after printing some results:

<?php
...
print $x;
sendSMSMessage(params);
...
?>

This process of this function might take too long time of running and the app has to wait a long time before getting a response so i would like to print the results regardless of whether the sendSMSMessage has done...