Validation rule

How can i validate sefurl rule after change value for $_POST['sefurl'] ?

This code return false ( sefurl error )

PHP Code:

if ( $this->request->getPost('title') ) {
 
 $_POST['sefurl'] = url_title($this->request->getPost('title'), '-', true);
 
 $rules['title'] = 'required|min_length[1]';
 $rules['sefurl'] = 'required|min_length[1]';
 
 if ( $this->validate($rules) ) {
 
 #true
 
 } else {
 
 #false
 
 }
 
} 


You can use $this->validateData():
https://codeigniter4.github.io/CodeIgnit...lidatedata

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