[模型] CI是如此的啰嗦!令人费解,还是我没有学会一个技巧?

$data = array (
'title' => $this->input->post('title'),
'cid' => $this->input->post('cid'),
'content' => $this->input->post('content'),
'time' => (string) date ('Y-m-j'),
);
$this->db->insert('news',$data);
if ($this->db->affected_rows())
{
return true;
}
else
{
return false;
}

<form xxxxxx>
<input name='db_newstitle'/>
<input name='db_newbody'/>
<input type='hidden' name='hidden_isad' value='0'/>
</form>

$prefix='db_';
$datas=array ();
foreach($_POST as $key=>$value)
{
if(strstr ($prefix,$key))
$datas[]=array (substr ($key,strlen ($prefix))=>$value);
}

<?php if ( ! defined ('BASEPATH')) exit ('No direct script access allowed');
class MY_Input extends CI_Input {
/**
* Fetch items from the GET array
*
* @access public
* @param mixed
* @param bool
* @return string
*/
function get($index = '', $xss_clean = FALSE)
{
if(is_array ($index))
{
$rt = array ();
foreach ($index as $key)
$rt[$key] = $this->_fetch_from_array($_GET, $key, $xss_clean);
return $rt;
}
else
return $this->_fetch_from_array($_GET, $index, $xss_clean);
}

// --------------------------------------------------------------------

/**
* Fetch items from the POST array
*
* @access public
* @param mixed
* @param bool
* @return string
*/
function post($index = '', $xss_clean = FALSE)
{
if(is_array ($index))
{
$rt = array ();
foreach ($index as $key)
$rt[$key] = $this->_fetch_from_array($_POST, $key, $xss_clean);
return $rt;
}
else
return $this->_fetch_from_array($_POST, $index, $xss_clean);
}
}