You need to replace the backslashes for forward slashes in the URLS
In the second post you need to place your double qoute propper:
"http://cubacafelv.com/ajaxtest/getresults.php?action=&Results"
change to
"http://cubacafelv.com/ajaxtest/getresults.php?action="&Results
And very ikely, you need to place:
header('Access-Control-Allow-Origin: *');
At the top of you PHP file right below <?php
This will make it work from PReview mode.
If you do not add it, it will only work once you exported and uploaded to that cub site of yours.