CodeIgniter SQL查询错误处理

Question

At this moment i access my posts like this

http://localhost/post/174565/

and everything works fine, but when i am trying to access them like this

http://localhost/post/1745s65/

i am getting error

Error Number: 1054
Unknown column '1745s65' in 'where clause'
SELECT * FROM posts WHERE id = 1745s65;
Filename: D:\Localhost\Apache\htdocs\code\system\database\DB_driver.php
Line Number: 330

i understand why it is there, but how to handle it? For example my users don't need to see SQL query, and i want to show them 404 page instead of this block.

Answer 1

use execptions:

try{
       //here what you need to do with script
         } catch (Exception $e) {
            var_dump($e->getMessage());
            show_404();
              }

i think you can try also to put :

$database['db_debug'] = FALSE; in config/database.php if you want to remove database errors from being shown

Answer 2

Try this code:

public function getPostData($iPostId) {
    $sqlQuery = $this->db->get_where('posts', array('id' => $iPostId));
    $aResult = $sqlQuery->result();

    if (empty($aResult)) {
        show_404();
    }
    else {
        return $aResult[0];
    }
}

Answer 3

You need to validate user input to prevent this issues. Anyhow, Codeigniter has two preset environments: development and prodution. Check your root index.php for more information.