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CodeIgniter Disallowed Key Characters


Open libraries/Input.php (system/core/Input.php in CI version 2.0+) and locate function _clean_input_keys($str){, The whole block should look like so:

function _clean_input_keys($str)
{
    if ( ! preg_match("/^[a-z0-9:_\/-]+$/i", $str))
    {
        exit('Disallowed Key Characters.');
    }

    return $str;
}
Modify the PCRE sot that it allows the new chars.

Please not that the char thats missing is the .(dot) and you should always escape the .(dot) in Regular Expressions as they will otherwise allow any single char.

/^[a-z0-9:_\/-\.]+$/i

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