I feel like this is missing something, perhaps a working demo. I'm experienced in php and jquery but after 2 days of fiddling and stack overflowing, i could no

I feel like this is missing something, perhaps a working demo. I'm experienced in php and jquery but after 2 days of fiddling and stack overflowing, i could not get my demo api to POST...any helpful links are appreciated. I was especially confused with php/cURL. .ajax seemed a bit more straightforward but jquery/javascript is so dang hard to debug. for cURL do you have to have any (non-default) settings installed on your servers?