adding a class to form_submit in PHP Codeigniter

Question

I'm trying to add a class to form_submit in PHP Codeigniter; Im doing with the following code:

        $attributes1=array(
            'class'=>'btn btn-danger',
        );
        echo form_submit('loginSubmit', 'Login',$attributes1['class']);

But the rendered code in HTML is as following:

<input type="submit" name="loginSubmit" value="Login" btn="" btn-danger="">

could you please let me know who I can the class to my form_submit?

Also If it is not clear please let me know which part is ambiguous so I will provide more clarification

Many thanks

Answer 1

Use Like this

echo form_submit('loginSubmit', 'Login',"class='btn btn-danger'");

Answer 2

I use it like this:

echo form_submit(array(
        'id' => 'submit', 
        'value' => 'Enter', 
        'class' => 'btn btn-primary'
     ));