如何更改 codeigniter 中显示的错误

The URI you submitted has disallowed characters.

我该如何拦截这个错误？他们是一个callback_功能？当我尝试在 URL 中使用 = 时，会发生此错误。例如。我输入 1=1 ——我得到这个错误。我想要的不是错误页面redirect('main/cate/page');

如何捕获此错误并重定向而不是显示“遇到错误页面”

看起来错误被抛出system/core/URI.php。幸运的是，你可以扩展核心类 http://codeigniter.com/user_guide/general/core_classes.html。在中创建一个文件application/core called MY_URI.php并重写该函数：

class MY_URI extends CI_URI{
    function __construct(){
        parent::__construct();
    }
    function _filter_uri($str){
        if ($str != '' && $this->config->item('permitted_uri_chars') != '' && $this->config->item('enable_query_strings') == FALSE)
        {
            // preg_quote() in PHP 5.3 escapes -, so the str_replace() and addition of - to preg_quote() is to maintain backwards
            // compatibility as many are unaware of how characters in the permitted_uri_chars will be parsed as a regex pattern
            if ( ! preg_match("|^[".str_replace(array('\\-', '\-'), '-', preg_quote($this->config->item('permitted_uri_chars'), '-'))."]+$|i", $str))
            {
                redirect('main/cate/page');
            }
        }

        // Convert programatic characters to entities
        $bad    = array('$',        '(',        ')',        '%28',      '%29');
        $good   = array('$',    '(',    ')',    '(',    ')');

        return str_replace($bad, $good, $str);
    }
}