Codeigniter 3 Unable to access an error message
codeigniter, forms, php, validation
Solution
From the codeigniter github :
A largely unknown rule about XSS cleaning is that it should only be applied to output, as opposed to input data.
We've made that mistake ourselves with our automatic and global XSS cleaning feature (see previous step about XSS above), so now in an effort to discourage that practice, we're also removing 'xss_clean' from the officially supported list of form validation rules.
Because the Form Validation library generally validates input data, the 'xss_clean' rule simply doesn't belong in it.
If you really, really need to apply that rule, you should now also load the Security Helper, which contains xss_clean() as a regular function and therefore can be also used as a validation rule.
Link : https://github.com/bcit-ci/CodeIgniter/blob/develop/user_guide_src/source/installation/upgrade_300.rst#step-13-check-for-usage-of-the-xss_clean-form-validation-rule
And if, despite everything, you really need it, go to application/config/autoload.php :
$autoload['helper'] = array('security');
Or, before your form validation
$this->load->helper('security');
Problem
I have proble with set_rules function in Codeigniter 3 i check user email: ``` $this->form_validation->set_rules('email', 'Email', 'required|trim|xss_clean|valid_email'); ``` and when I post get this error: Unable to access an error message corresponding to your field name Email.