不建议使用Codeigniter：mysql_real_escape_string（）：

Question

Got below error while using codigniter 3.0

FYI using PHP Version 5.5.12,Apache Version Apache/2.4.9 (Win64) PHP/5.5.12

A PHP Error was encountered

Severity: 8192

Message: mysql_real_escape_string(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead

Filename: models/common_model.php

Line Number: 21

Backtrace:

File: C:\\wamp\\www\\Codeigniter\\application\\models\\common_model.php Line: 21 Function: mysql_real_escape_string

Answer 1

use mysqli_real_escape_string();

and replace mysql to mysqli in every functions.

Answer 2

Go to application => config => database.php and change from

$db['default']['dbdriver'] = 'mysql';

to

$db['default']['dbdriver'] = 'mysqli';

Note It is recommended to use query builder class for queries.

Answer 3

You should use PDO in codeigniter to solve all problem related to mysql and mysqli ..

see how to use PDO in CI if you are using CI 3 then http://www.codeigniter.com/user_guide/database/configuration.html

and if you are using CI 2.x How to use pdo in codeigniter?