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CodeIgniter针对数据库的连接、配置及使用方法_PHP

WBOY
WBOYOriginal
2016-05-27 10:35:49846browse

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 $row->email."
"; } echo "Total Result==".$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。

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