how to send a hole form's attributes with onsubmit()?

Question

<form method='post' name='...' action='index.html' onsubmit='function(x,z,u)'>

I want to send every element of my form that will be sent a PHP file with

xmlhttp.open("GET","user.php?q="+str,true) 

What are the proper sintaxes of submitting more than one variables with Onsubmit() and the xmlhttp.open() ?

I'm self taught, I can double thank you if I can use the code later in the program.

Answer 1

You want something like this:

xmlhttp.open("GET", "user.php?q1="+encodeURIComponent(x)+"&q2="+encodeURIComponent(y)+"&q3="+encodeURIComponent(z), true);

It would be easier if you used a library like jQuery. If you want all the inputs from a form, you can use its $.serialize() function. If you need to calculate the values to send, it has $.get and $.post functions that allow you to supply the parameters as an object and it will take care of all the encoding.

Answer 2

Do you really need AJAX? If you want to send form element to php file, why can't you set it in action attribute?