How to put glyth bootstrap in button in yii?

Question

Yii

This trick works:

echo CHtml::htmlButton('<span class="glyphicon glyphicon-search"></span>',
                ["class"=>"btn btn-default", 'type'=>'submit', 'name'=>'yt0']);

I would like it in this format:

echo CHtml::SubmitButton('<span class="glyphicon glyphicon-search"></span>',
                ["class"=>"btn btn-default"]);

Or in this one:

echo CHtml::SubmitButton(CHtml::tag('span',['class'=>'glyphicon glyphicon-search'],'',true),
                ["class"=>"btn btn-default"]);

But the output is just the text on the button:

Answer 1

CHtml::submitButton('<strong>test</strong>', ['encode' => false]);