我已经逐步将我的代码点火器版本从 2.2.4 更新到 3.0.6,但出现错误:
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
我刚刚用新的索引.php文件和系统目录替换了我的索引,并根据教程在我的应用程序中进行了一些更改。
这是主控制器:
class Main extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->model('main_model');
}
}
是什么原因导致问题?!
这是教程的链接。
5.5.x 中已弃用的功能:
原来的MySQL扩展现已弃用,并且在连接到数据库时会产生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
数据库驱动程序。找到config/database.php
文件并更改dbdriver
以使用mysqli
:
$db['default']['dbdriver'] = 'mysqli';
感谢Anant
我得出一个结论:
我用新数据库完全更改了配置文件夹中的旧数据库.php文件:
从:
$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;
自:
$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!
转到应用程序/配置/数据库.php
只需将mysql
更改为mysqli
喜欢这是以前:
$db['default']['dbdriver'] = 'mysql';
这是在解决方案之后:
$db['default']['dbdriver'] = 'mysqli';
我只是将MySQL更改为MySQL。
我的错误是
致命错误:未捕获错误:调用未定义的函数 mysql_pconnect() in 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->初始化() #2 E:''manish_data''software''xampp''htdocs''ci2''system''core''Loader.php(347): DB(数组,空) #3 E:''manish_data''software''xampp''htdocs''ci2''application''models''usermodel.php(20): CI_Loader->数据库() #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} 扔进去 E:''manish_data''software''xampp''htdocs''ci2''system''database''drivers''mysql''mysql_driver.php 在第 92 行
如果在托管网站时发生此错误,请确保设置正确的 PHP 版本(CI 使用的版本)。