CI2 Disallowed Key Characters in JSON

In system\core\Input.php.
if( ! preg_match('/^[~a-zA-Z0-9{},:_\/-]+$/i', $str))
{
    exit('Disallowed Key Characters: '.$str);
}
This piece of code triggers Disallowed Key Characters when $str contains:
{"education_level":"1","job_experience":"1","occupation":"41-3011","onet_code"
:"41-3011_00","region":"22220","relevance":"0","school":"0","schoolstate":"0","state":"4","gpa":"0","major"
:"0"}

See the PHP Manual json_decode() and json_encode()

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Joined CodeIgniter Community 2009.  ( Skype: insitfx )

You can use this code to disallowed key character in JASON

Find the function _clean_input_keys($str)

Change:

exit('Disallowed Key Characters.');

to:

 exit('Disallowed Key Characters.'. $str);

<input type="text" name="myarray['data1']" \>

And I just changed the input's name.

<input type="text" name="myarray[data1]" \>