Question

Can I pass form values in load() function of jQuery then be able to read them as $_POST parameters in php? …

Answer 1

Sure, add an object with the values as 2nd parameter to your load call. See the docs where is stated:

The POST method is used if data is provided as an object; otherwise, GET is assumed.

So your JavaScript could look like:

$('#result').load('ajax/call.php', { postVarName: 'value' }, function() {
  alert('Load was performed.');
});

In PHP you can now access it:

echo $_POST["postVarName"]; // will echo: value