form_dropdown()

Hi all,
Does anyone know is there is a way to place additional attributes to the option tag in a Select dropdown, using the form_dropdown() form helper?
I am trying to achieve a out put like this

Code:

<select class="floating-select" name="tam_day_label" id="tam_day_label" onclick="this.setAttribute(\'value\', this.value);" value=" " required/>
    <option value="Monday" rel="1">Monday</option>
    <option value="Tuesday" rel="2">Tuesday</option>
    <option value="Wednesday" rel="3">Wednesday</option>
    <option value="Thursday" rel="4">Thursday</option>
    <option value="Friday" rel="5">Friday</option>
    <option value="Saturday" rel="6">Saturday</option>
    <option value="Sunday" rel="7">Sunday</option>
    <option value="Week" rel="8">Week</option>
</select>

my current form dropdown (select) is compiled like below:
Controller

PHP Code:

$dayArray=[
 $value['monday']='Monday';
 $value['tuesday']='Tuesday';
 $value['wednesday']='Wednesday';
 $value['thursday']='Thursday';
 $value['friday']='Friday';
 $value['saturday']='Saturday';
 $value['sunday']='Sunday';
 ];

$data['dayType_tags'] = 'class="floating-select" id="tam_std_rate_type" onclick="this.setAttribute(\'value\', this.value);" value=" " required'; 


View

PHP Code:

<?= form_dropdown('tam_day_label', $dayArray, old('tam_day_label'), $dayType_tags); ?>

Output

Code:

<select class="floating-select" name="tam_day_label" id="tam_day_label" onclick="this.setAttribute(\'value\', this.value);" value=" " required/>
    <option value="Monday" rel="1">Monday</option>
    <option value="Tuesday" rel="2">Tuesday</option>
    <option value="Wednesday" rel="3">Wednesday</option>
    <option value="Thursday" rel="4">Thursday</option>
    <option value="Friday" rel="5">Friday</option>
    <option value="Saturday" rel="6">Saturday</option>
    <option value="Sunday" rel="7">Sunday</option>
    <option value="Week" rel="8">Week</option>
</select>

Many thanks.

The easiest way to know is looking at the code: https://github.com/codeigniter4/CodeIgni...r.php#L267
The short answer: it's not possible. 
Anyway, I'm not sure how it could be implemented since it takes a simple key/value array as input for the options.

CodeIgniter 4 tutorials (EN/FR) - https://includebeer.com
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Thank you includebeer.

I toyed with this for quite a while, obviously with no luck and thought I was missing something. I will have to take a different approach, but isn't that half the fun?

Again, many thanks