Formatting buttons in a form (CodeIgniter) - css

Question

Just wondering how to go about giving a form in CodeIgniter a class? I've tried just formatting buttons, hoping that the submit button would change in the form, but it didn't.
echo form_open('User/feed' class='buttonClass');
echo form_submit('NF', 'News Feed');
echo form_close();
I couldn't find anything which seemed to help me online.
Thank you!

Answer 1

echo form_open('User/feed', array( 'class' => 'classname' ));
// will become:
<form method="post" accept-charset="utf-8" action="http:/example.com/index.php/User/feed" class="classname" />
echo form_submit('NF', 'News Feed');
// will become:
<input type="submit" name="NF" value="News Feed" />
echo form_close();
// will become:
</form></div></div>
Now keep in mind, adding classes and other attributes via the array in the first line up there only adds them to the Form line. I would recomend, if you're doing this in view, writing pure html and adding in the information needed. More like:
<form method="post" accept-charset="utf-8" action="<?= base_url('User/feed'); ?>" class="classname">
<div>
Something here for the form
<input type="text" name="stuff" />
</div>
<input type="submit" name="NF" value="News Feed" class="myButton" />
</form>
Also, of note, you can create buttons using an array and assign class and other attributes that way. Such as:
$myButton = array(
'class' => 'myButton',
'name' => 'NF',
'value' => 'News Feed',
);
echo form_button($myButton);
Lastly, and I think this is what you're aiming for, you can do the same with form_submit:
$myButton = array(
'class' => 'mySubmitButton',
'name' => 'nfSubmit',
'value' => 'Submit',
);
echo form_submit($data);

Answer 2

Per the documentation, the form helper accepts an array as the second parameter, allowing one to apply various options, such as a class. For example:
$attributes = array(
'class'=>'myClass'
);
echo form_open('User/feed', $attributes);
Documentation
Form Helper - http://ellislab.com/codeigniter/user-guide/helpers/form_helper.html