php-CI框架学习 增删改查

所用框架 Codelgniter 3.1.2版本

环境要求:

PHP 5.3.7以上, mysql 要求开启 mysqli扩展

本程序需要安装在网站根目录

 

在线效果网址：http://www.xuxucode.top/code/cizsgc/

Ci框架的增删改查，效果如下图

主要控制器源码:

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Home extends CI_Controller {

	/**
	 * Index Page for this controller.
	 *
	 * Maps to the following URL
	 * 		http://example.com/index.php/welcome
	 *	- or -
	 * 		http://example.com/index.php/welcome/index
	 *	- or -
	 * Since this controller is set as the default controller in
	 * config/routes.php, it's displayed at http://example.com/
	 *
	 * So any other public methods not prefixed with an underscore will
	 * map to /index.php/welcome/<method_name>
	 * @see https://codeigniter.com/user_guide/general/urls.html
	 */
	public function index()
	{	
		$result = $this->db->query('select * from contact');
		foreach ($result->result_array() as $row)
		{
			$data['lists'][] = $row;
		}
		$this->load->view('home',$data);
	}
	public function add()
	{
		if($this->input->post('submit'))
		{
			$name = $this->input->post('name');
			$sex = $this->input->post('sex');
			$phone = $this->input->post('phone');
			$address = $this->input->post('address');
			$result = $this->db->query("insert into contact(name,sex,phone,address) values('$name','$sex','$phone','$address')");
			if($result){
				$this->load->view('ok');
			}else{
				$this->load->view('error');
			}
		}else{
			$this->load->view('add');
		}
	}
	public function del()
	{
		$id = $this->uri->segment(3);
		$result = $this->db->query("delete from contact where id=$id");
		if($result){
			$this->load->view('ok');
		}else{
			$this->load->view('error');
		}
	}
	public function mod()
	{

		$id = $this->uri->segment(3);
		if($this->input->post('submit'))
		{
			$id = $this->input->post('id');
			$name = $this->input->post('name');
			$sex = $this->input->post('sex');
			$phone = $this->input->post('phone');
			$address = $this->input->post('address');
			$result = $this->db->query("update contact set name='$name',sex='$sex',phone='$phone',address='$address' where id=$id");
			if($result){
				$this->load->view('ok');
			}else{
				$this->load->view('error');
			}
		}else{
			$result = $this->db->query("select * from contact where id=$id");
			$data['row'] = $result->row_array();
			$this->load->view('mod',$data);
		}
	}
	public function search()
	{
		$keyword = $this->input->post('keyword');
		$result = $this->db->query("select * from contact where (name like '%$keyword%') or (address like '%$keyword%') or (phone like '%$keyword%')");
		foreach ($result->result_array() as $row)
		{
			$data['lists'][] = $row;
		}
		$this->load->view('home',$data);
	}
}