Request Ajax Codeigniter

Question

I am receiving the following error when sending json data via ajax using codeigniter: Disallowed Key Characters. When sending only one object works smoothly, but when sending more of an object returns the error to me.

jQuery.post( "http://localhost/endereco", 
                    {informacao1:"dado1", informacao2:"dado2"},
                    function(data){     

                            alert(data);

                    }   
        );

Answer 1

What you can do is create a file MY_Input.php within application/core

<?php

class MY_Input extends CI_Input {

    /**
     * Clean Keys
     *
     * This is a helper function. To prevent malicious users
     * from trying to exploit keys we make sure that keys are
     * only named with alpha-numeric text and a few other items.
     * 
     * Extended to allow: 
     *      - '.' (dot), 
     *      - '[' (open bracket),
     *      - ']' (close bracket)
     * 
     * @access  private
     * @param   string
     * @return  string
     */
    function _clean_input_keys($str)
    {
        if ( ! preg_match("/^[a-z0-9:_\/\.\[\]-]+$/i", $str) )
        {
            exit('Disallowed Key Characters.');
        }

        // Clean UTF-8 if supported
        if (UTF8_ENABLED === TRUE)
        {
            $str = $this->uni->clean_string($str);
        }

        return $str;
    }

}