Codeigniter错误:调用未定义的函数mysql_pconnect()

时间:2016-04-24 11:24:26

标签: php codeigniter

我已将我的codeigniter版本从2.2.4一步一步更新到3.0.6,我收到错误:

An uncaught Exception was encountered

Type: Error

Message: Call to undefined function mysql_pconnect()

Filename: path-to-project\system\database\drivers\mysql\mysql_driver.php

Line Number: 135

Backtrace:

File: path-to-project\application\controllers\Main.php
Line: 10
Function: __construct

File: path-to-project\index.php
Line: 315
Function: require_once

我刚刚将index.php文件和系统目录替换为新目录,并根据教程对我的应用程序进行了一些更改。

这是主控制器:

class Main extends CI_Controller {

    function __construct()
    {
        parent::__construct();
        $this->load->model('main_model');
    }
}

导致问题的原因是什么?!

本教程的this is the link

4 个答案:

答案 0 :(得分:66)

Deprecated features in PHP 5.5.x

  

现在不推荐使用原始MySQL扩展,并且在连接到数据库时会生成E_DEPRECATED错误。相反,请使用MySQLi或PDO_MySQL扩展。

您正在使用已弃用的'mysql' dbdriver。找到config/database.php文件并将dbdriver更改为使用'mysqli'

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

答案 1 :(得分:11)

感谢 Anant

我得出结论:

我在配置文件夹中使用新文件完全更改了旧的database.php文件:

自:

$db['default']['hostname'] = 'localhost';
$db['default']['username'] = '';
$db['default']['password'] = '';
$db['default']['database'] = '';
$db['default']['dbdriver'] = '';
$db['default']['dbprefix'] = '';
$db['default']['pconnect'] = TRUE;
$db['default']['db_debug'] = TRUE;
$db['default']['cache_on'] = FALSE;
$db['default']['cachedir'] = '';
$db['default']['char_set'] = 'utf8';
$db['default']['dbcollat'] = 'utf8_general_ci';
$db['default']['swap_pre'] = '';
$db['default']['autoinit'] = TRUE;
$db['default']['stricton'] = FALSE;

要:

$db['default'] = array(
    'dsn'   => '',
    'hostname' => '',
    'username' => '',
    'password' => '',
    'database' => '',
    'dbdriver' => 'mysqli',
    'dbprefix' => '',
    'pconnect' => FALSE,
    'db_debug' => (ENVIRONMENT !== 'production'),
    'cache_on' => FALSE,
    'cachedir' => '',
    'char_set' => 'utf8',
    'dbcollat' => 'utf8_general_ci',
    'swap_pre' => '',
    'encrypt' => FALSE,
    'compress' => FALSE,
    'stricton' => FALSE,
    'failover' => array(),
    'save_queries' => TRUE
);

错误消失了!

答案 2 :(得分:4)

转到application / config / database.php
只需将mysql更改为mysqli

喜欢 这是以前的

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

这是在解决之后:

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

我只是将mysql更改为mysqli。就是这样

我的错误是

致命错误:未捕获错误:调用未定义函数 mysql_pconnect()在 E:\ manish_data \ software \ xampp \ htdocs \ ci2 \ system \ database \ drivers \ mysql \ mysql_driver.php:92 堆栈跟踪:#0 E:\ manish_data \ software \ xampp \ htdocs \ ci2 \ system \ database \ DB_driver.php(116): CI_DB_mysql_driver-> db_pconnect()#1 E:\ manish_data \ software \ xampp \ htdocs \ ci2 \ system \ database \ DB.php(149): CI_DB_driver-> initialize()#2 E:\ manish_data \ software \ xampp \ htdocs \ ci2 \ system \ core \ Loader.php(347): DB(数组,NULL)#3 E:\ manish_data \ software \ xampp \ htdocs \ ci2 \ application \ models \ usermodel.php(20): CI_Loader-> database()#4 E:\ manish_data \ software \ xampp \ htdocs \ ci2 \ application \ controllers \ users.php(15):UserModel-> getUsers()#5 E:\ manish_data \ software \ xampp \ htdocs \ ci2 \ system \ core \ CodeIgniter.php(360): 用户->索引()#6 E:\ manish_data \ software \ xampp \ htdocs \ ci2 \ index.php(202): require_once('E:\ manish_data \ ...')#7 {main}被抛出 E:\ manish_data \ software \ xampp \ htdocs \ ci2 \ system \ database \ drivers \ mysql \ mysql_driver.php 在第92行

答案 3 :(得分:0)

如果您在托管网站时发生此错误,请务必设置正确的PHP版本(CI使用的版本)。