Reputation:
I want to setup my validation rules in codeigniter such as a field starts with character 'P' or 'S', other wise it is invalid. How can I do that using Codigniter validation library?
Test Case 1: input: A145874 ------- invalid Must start with P or S
Test Case 2: input: P258741 ------- valid
Test Case 3: input: P45KK91 ------- invalid Must not contain Letters in other positions rather the first one.
Test Case 4: input: S457821 ------- valid
Upvotes: 1
Views: 250
Reputation: 21575
You would need to write a custom validation rule. Something like this:
public function check_first_char($str) {
$first_char = substr($str, 0, 1);
if ($first_char != 'P' || $first_char != 'S') {
$this->form_validation->set_message('check_first_char', 'The %s field must begin with P or S!');
return FALSE;
} else {
return TRUE;
}
}
Then you would add that validation rule like this:
$this->form_validation->set_rules('field_name', 'Field Name', 'callback_check_first_char');
The documentation explains it all pretty clearly.
Upvotes: 2