Codeigniter Form Validation - how to unset form values after success?

Question

I realise this request goes against the example provided in the CI documentation (which advises a separate \'success\' page view), but I would like to reutilise a given form

Answer 1

The answer from d5avard is wrong, the CI form validation should have the rules array parsed to it: If you don't do this you can use form validation with posted data, but not with over-ride data.

save this file as Libraries/MY_Form_validation.php

    /**
     * Class MY_Form_validation
     * @description extension of the CI_Form_validation
     * @property CI_DB_query_builder db database driver
     * @property CI_Benchmark benchmark
     * @property CI_Input input
     * @property CI_Output output
     */
    class MY_Form_validation extends CI_Form_validation
    {
        /**
         * MY_Form_validation constructor.
         * @param array $rules
         */
        function __construct($rules = array())
        {
            parent::__construct($rules);
            $this->_error_prefix        = '
';
            $this->_error_suffix        = '
';
        }

        /**
         * Resets the form validation class for multiple runs.
         * @param array $rules
         */
        public function initialise($rules = array())
        {
            if (count($rules) == 0 )
            {
                require (APPPATH.'config'.DIRECTORY_SEPARATOR.'form_validation.php');
                $this->_config_rules = $config;
            }
            else
            {
                $this->_config_rules = $rules;
            }
            $this->_field_data          = array();
            $this->_error_array         = array();
            $this->_error_messages      = array();
            $this->_error_prefix        = '
';
            $this->_error_suffix        = '
';
            $this->error_string         = '';
        }
    }