POSTPARAMS vs GETPARAMS - DS Protocol

Hello, I am trying to build a restdatasource as I slowly get the hang of this. One problem I have right now is GETPARAMS and POSTPARAMS. I wanted to use POST so I could get the info via the PHP script, but when I do, I only seem to be able to retrieve the data using the $_GET global. I dont seem to get anything when changing it to $_POST.

RestDataSource noteAddDS = new RestDataSource();
noteAddDS.setDataURL("noteadd.php");
		
OperationBinding add = new OperationBinding();
add.setOperationType(DSOperationType.ADD);
add.setDataProtocol(DSProtocol.POSTPARAMS);
			
noteAddDS.setOperationBindings(add);
			
DataSourceTextField addNote = new DataSourceTextField("text", "text");
			
			
TextAreaItem noteArea = new TextAreaItem("text","Enter Notes and Click Submit");
noteAddDS.setFields(addNote);
			
final DynamicForm notesAddForm = new DynamicForm();
notesAddForm.setDataSource(noteAddDS);
notesAddForm.setFields(noteArea);
				
Button noteSubmit = new Button("Add Note");
noteSubmit.setAlign(Alignment.CENTER);
noteSubmit.addClickHandler(new ClickHandler() {  
		            public void onClick(ClickEvent event) {  
		            	notesAddForm.submit();
		            }  
		        });

$_GET[text] works fine but $_POST[text] doesnt seem to pull in anything.

What am I doing wrong here?

Use firebug, and you can see what client send to server

Thanks adder, that helps alot. Wasnt seeing it at first in firebug but after clicking on a few things I started seeing all of the GET requests, now just to find out why they arent post, I must be confused at what POSTPARAMS means.

I cant find any examples that show how to submit a form. Any pointers in that may help me get to where I need to be. When I call submit or saveData, it seems to call nothing, instead of the script Ive got set.