Difference between #9 and #8 of using multiple radio button

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Title
using multiple radio button
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Category
Tips
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Tags
radiobutton, radio, button, activeRadioButton, multiple, value
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Content
When we use multiple radio buttons with same name in Yii 
many people have the problem on getting the value of the selected radiobutton.
The radioButtonList can be used for that, but if we need to use radioButton
itself to place the button any where in a view, we need to include one more
parameter in htmloption array().

**'uncheckValue'=>null**

##Usage
~~~
[php]
echo CHtml::radioButton('btn', false, array(
    'value'=>'1',
    'name'=>'btnname',
    'uncheckValue'=>null
)); 
CHtml::radioButton('btn', false, array(
    'value'=>'2',
    'name'=>'btnname',
    'uncheckValue'=>null
)); 

//we can use it in activeRadioButton(), too
echo $form->radioButton($model, 'name', array(
    'value'=>1,
    'uncheckValue'=>null
));
echo $form->radioButton($model, 'name', array(
    'value'=>2,
    'uncheckValue'=>null
));
~~~

so we can place the radio button anywhere on the page.

regards

nitrivanintriva