ajax jquery php connecting php file sending variables part 2

how to connect to php file and exchange variable data

[El_ii]

Thank you so much, finally someone who can explain. So many try it for beginners but can't really explain what goes in the parameters.

[yudhishthirkulkarni]

i search everywhere but i found it with good theory in your tutorial, Thanks

[souphiane]

Muhammad, you have helped me out so much!! may allah bless you XD

[ernestoparra]

Hey man, nice tutorial very helpfull..

[henryvongsavath]

Hi, great tutorial. I was wondering how I would do this with objects. I'm using ACF plugin with wordpress and trying to create a logo download page that has different sizes for each logo.

The logo is a php object and has these sizes all setup. Since I'm not really submitting anything how do I pass a php variable to jquery?

My .js file is not on the same page as my .php page.

Any help would be appreciated. Thank you.