Codeigniter Custom Form Validation Rules - php

Question

i'm trying to make a custom validation rules for a field. It's a multiple checkbox.
<div class="row checkbox-wrapper" id="checkbox-wrapper">
<?php foreach ($facilities as $facility) : ?>
<div class="col-md-6 mb-2">
<div class="custom-control custom-checkbox">
<input type="checkbox" name="list_facility[]" value="<?php echo $facility['id']; ?>">
<label class="custom-control-label"><?php echo $facility['facility_name'] ?></label>
</div>
</div>
<?php endforeach ?>
</div>
So i try to validate them with a custom rule called facility_valdation()
$this->form_validation->set_rules('list_facility', 'Facility List', 'callback_facility_validation');
public function facility_validation($array)
{
if ($array == NULL) {
$this->form_validation->set_message('facility_validation', 'Fasilitas tidak boleh kosong (minimal = 1)');
return FALSE;
} else {
return TRUE;
}
}
The false condition is correct, whenever i leave the checkbox empty, it returns the message. but if i try to check one or more box, i keep getting the false message.
I've tried to var_dump my list_facility variable and i already get what i want. It is NULL when there are no checkbox checked, or an array of id for every checkbox i checked.
I've implemented the custoiom validation in another controller and it works just fine

Answer 1

Your form input field is array, so your validate field must be an array too. It should be
$this->form_validation->set_rules('list_facility[]', 'Facility List', 'callback_facility_validation');
list_facility[] instead of list_facility
I've tried and it works. Hope this helps