php ajax multiple requests -


i been learning php , ajax w3schools have come across question cant find answer to.

to request php file use xmlhttprequest object , specify url (of php file). mean 1 php file 1 request only? let's on webpage there user log-in box , comment box, need 2 php files take requests? thought server side have 1 main file handle requests, each request client have id specify request , send necessary data client. right?

i read lot of material online, basic example 1 request , 1 response.

you can use same file multiple requests. can supply parameters along ajax request, either including them in url after ? (they'll available in $_get , $_request) or using post method , sending them form data (they'll available in $_post , $_request). can use javascript formdata api encode properly; see documentation here. using jquery library can simplify of this.

one of parameters can command or operation code, , script can take different actions based on this.


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