I'm beginner.

i try it this
Code:
 
var para = {one :{value: '123',opt:'456'},two:{value:'789',opt:'101112'}};

Ext.getStore('Brabra').reload({    params: Ext.urlEncode({encode : para})
});
for
PHP Code:
$encode get('encode');

var_dump(json_decode($encorde,true)); 
but not mine

Thankyou for ans.