本文实例讲述了CodeIgniter针对数据库的连接、配置及使用方法。分享给大家供大家参考,具体如下:
1. 数据库:
create database test; create table users( id int not null, name varchar(10), pwd varchar(10), email varchar(20) ) insert into users values(1,'shunping','shunping','aa@163.com'); insert into users values(2,'shunping2','shunping2','bb@163.com');
2. 我用的是Postgreql
在\CodeIgniter\system\application\config\database.php文件中配置数据库参数:
$active_group = "default"; $db['default']['hostname'] = "localhost"; $db['default']['username'] = "postgres"; $db['default']['password'] = "admin"; $db['default']['database'] = "test"; $db['default']['dbdriver'] = "postgre"; $db['default']['dbprefix'] = ""; $db['default']['active_r'] = TRUE; $db['default']['pconnect'] = FALSE; $db['default']['db_debug'] = TRUE; $db['default']['cache_on'] = FALSE; $db['default']['cachedir'] = ""; $db['default']['port'] = "5432";
在\CodeIgniter\system\application\controllers目录下测试文件db1.php内容如下:
<?php class Db1 extends Controller{ function index(){ $this->load->database(); $query=$this->db->query("select name,pwd,email from users"); foreach ($query->result() as $row) {//返回对象数组 echo $row->name; echo $row->pwd; echo $row->email."<br>"; } echo "Total Result==".$query->num_rows(); } } ?>
打开浏览器敲入地址:
http://localhost:8888/index.php/MyController/db1
ok搞定!
我想大家肯定也遇到过连不上数据库的问题,我花费了好些精力才解决这个问题,现在告诉大家,希望对大家学习CodeIgniter这个优秀的PHP框架有所帮助。
更多关于PHP相关内容感兴趣的读者可查看本站专题:《codeigniter入门教程》、《CI(CodeIgniter)框架进阶教程》、《php日期与时间用法总结》、《php面向对象程序设计入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》

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