PHP教程：php编写简单的文章发布程序

PHP应用
CREATE TABLE IF NOT EXISTS `yi_article` (
 `id` int(11) unsigned NOT NULL auto_increment,
 `title` varchar(256) NOT NULL,
 `content` mediumtext NOT NULL,
 `add_man` varchar(20) NOT NULL,
 `add_time` datetime NOT NULL,
 `views` int(11) NOT NULL,
 `tag` tinyint(4) NOT NULL,
 PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=21 ;

PHP应用
<?php
  class Article extends CI_Controller{
    public $tips;
    function __construct(){
      parent::__construct();
      //加载我自己的类库
      $this->load->library('myclass');
      $this->load->database();
      $this->load->helper('url');
      $this->tips=array(
        'required'=>' [%s] 是必须填写的!',
        'is_unique'=>'此 [%s] 已经存在,请输入其它名称!',
        'min_lenght'=>' [%s] 最小长度为 [%s]',
        'max_length'=>'[%s] 最大长度为 [%s]'
      );
    }
    function index(){
      echo "这里是文章的首页";
      echo "<br />";
      //加载url辅助函数
      $this->load->helper('url');
      $addr=site_url('article/article_list');
      echo "<a href='$addr'>查看文章</a>";
      $addr=site_url('article/article_page');
      echo "<a href='$addr'>查看分页</a>";
    }
    function article_list(){
      echo "这里是文章列表";
      //加载数据库模型
      //$this->load->model('article_model');
      //$this->article_model->index();
      //读取所有的文章
      $this->load->database();
      echo "<br />";
      $query=$this->db->where("id >",5)->select('id,title')->from('article')->order_by('id','desc')->limit(4)->get();
      $info=$query->result_array();//当然你可以用result()
      $this->myclass->p($info);
      echo "第一条记录的标题：".$info[0]['title'];
      echo "<br />";
      echo "第二条记录的标题：".$info[1]['id'];
      echo "<br />";
      echo "表article中共有这么些记录：".$this->db->count_all('article');
      echo "<br />";
      echo "本次共查询出这么些条记录：".$query->num_rows();
    }
    function article_page($page=1){
      ///////////////////////////////////
      $config=array();
      //第一步查询出总记录数
      $this->load->database();
      $config['total_rows']=$this->db->select('*')->from('article')->count_all_results();
      //每页记录数
      $config['per_page']=5;
      //基础url
      $this->load->helper('url');
      $config['base_url']=site_url('article/article_page');
      //显示的链接数
      $config['num_links']=100;
      //在地址栏显示当前页码
      $config['use_page_numbers']=true;
      //定义首页
      $config['first_link']='首页';
      //定义末页
      $config['last_link']='尾页';
      //上一页
      $config['prev_link']='上一页';
      //下一页
      $config['next_link']='下一页';
      //把分页包起来
      $config['full_tag_open']='<p>';
      $config['full_tag_close']='</p>';
      //第二步加载类库
      $this->load->library('pagination');
      $this->pagination->initialize($config);
      echo $this->pagination->create_links();
      /////////////////////////////////////
      $page=$page?intval($page):1;
      $start=($page-1)*$config['per_page'];
      $query=$this->db->select('*')->from('article')->limit($config['per_page'],$start);
      $info=$query->get()->result_array();
      $this->myclass->p($info);
      echo $this->pagination->create_links();
      //echo base_url('abc/def');
    }
    protected function _page($total_rows,$per_page,$base_url){
      ///////////////////////////////////
      $config=array();
      //第一步查询出总记录数
      //$this->load->database();////
      $config['total_rows']=$total_rows;
      //每页记录数
      $config['per_page']=$per_page;
      //基础url
      $this->load->helper('url');////
      $config['base_url']=site_url($base_url);
      //显示的链接数
      $config['num_links']=100;
      //在地址栏显示当前页码
      $config['use_page_numbers']=true;
      //定义首页
      $config['first_link']='首页';
      //定义末页
      $config['last_link']='尾页';
      //上一页
      $config['prev_link']='上一页';
      //下一页
      $config['next_link']='下一页';
      //把分页包起来
      $config['full_tag_open']='<p>';
      $config['full_tag_close']='</p>';
      //第二步加载类库
      $this->load->library('pagination');
      $this->pagination->initialize($config);
      return $this->pagination->create_links();
      /////////////////////////////////////
    }
    function page($page=1){
      $config['per_page']=5;
      $page=$page?intval($page):1;
      $start=($page-1)*$config['per_page'];
      $query=$this->db->select('*')->from('article')->limit($config['per_page'],$start);
      $info=$query->get()->result_array();
      return $info;
    }
    function article_add(){
      $this->load->library('form_validation');
      //开始设置验证规则
      //set_message可以传一个一维数组
      $chinesetips=$this->tips;
      $this->form_validation->set_message($chinesetips);
      /*
      $this->form_validation->set_message('required', ' [%s] 是必须填写的!');
      $this->form_validation->set_message('is_unique', '此 [%s] 已经存在,请输入其它名称!');
      $this->form_validation->set_message('min_length', ' [%s] 最小长度为 [%s]');
      $this->form_validation->set_message('max_length', ' [%s] 最大长度为 [%s]');
      */
      $this->form_validation->set_rules('title','标题','trim|required|is_unique[article.title]|min_length[6]|max_length[12]');  
      $this->form_validation->set_rules('content','内容','required');
      $this->form_validation->set_rules('tag','状态','required');
      if($this->form_validation->run()==true){
        echo "表单验证成功!";
        print_r($this->input->post());
        $data=$this->input->post();
        unset($data['Submit']);
        $data['add_time']=date('Y-m-d H:i:s');
        $data['views']='0';
        $st=$this->db->insert('article',$data);
        if($st){
          echo "数据插入成功!";
          echo "新的id为：".$this->db->insert_id();
        }
        //echo get_magic_quotes_gpc();
      }else{
        echo "表单验证失败!";
        echo "<br />";
        echo validation_errors();
      }
    }
    function article_add_viewer(){
      $this->load->helper('url');
      $this->load->view('article_add');
    }
    function article_links(){
      $addr=site_url('article/article_mod_viewer/19');
      echo "<a href='$addr'>修改19</a>";
    }
    function article_mod_viewer($id){
      if($id==""){
        echo "没有传递参数";
        exit;
      }
      $this->load->helper('url');
      //从数据库中查出来
      $query=$this->db->select()->from('article')->where('id',$id)->get();
      $info=$query->row_array();
      print_r($info);
      $this->load->view('article_mod',$info);
    }
    function abc($val){
      $this->form_validation->set_message('abc','不行');
      //p($val);
      return true;
    }
    function article_mod(){
      $this->load->library('form_validation');
      //开始设置验证规则
      //set_message可以传一个一维数组
      $chinesetips=$this->tips;
      $this->form_validation->set_message($chinesetips);
      $this->form_validation->set_rules('title','标题','trim|required|min_length[6]|max_length[12]|callback_abc');  
      $this->form_validation->set_rules('content','内容','required');
      $this->form_validation->set_rules('tag','状态','required');
      if($this->form_validation->run()==true){
        echo "表单验证成功!";
        print_r($this->input->post());
        $data=$this->input->post();
        $id=$data['id'];
        unset($data['id']);
        unset($data['Submit']);
        $data['add_time']=date('Y-m-d H:i:s');
        $data['views']='0';
        //p($data);
        $st=$this->db->where('id',$id)->update('article',$data);
        if($st){
          echo "数据修改成功";
        }else{
          echo "数据修改失败";
        }
      }else{
        echo "表单验证失败!";
        echo "<br />";
        echo validation_errors();
      }
    }
    function article_del($id=''){
      if($id==""){
        //exit('请传id');
      }
      $id=array(17,18,19);
      $this->db->where_in('id',$id)->delete('article');
      $st=$this->db->affected_rows();
      echo $st;
      if($st){
        echo "数据删除成功!";
      }else{
        echo "数据删除失败!";
      }
    }
  }
?>

PHP应用
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta name="author" content="Www.XiaZaiBa.Com" />
<title>无标题 1</title>
</head>
<body>
<form name="form1" action="<?php echo site_url('article/article_add')?>" method="post">
标题：<input name="title" type="text" value="" /><br />
内容：<input name="content" type="text" value="" /><br />
添加人：<input name="add_man" type="text" value="" /><br />
添加时间：系统自动记录<br />
状态：<input name="tag" type="radio" value="1" />显示 <input name="tag" type="radio" value="0" />暗藏<br />
<input type="submit" name="Submit" value="提交" />
</form>
</body>
</html>

PHP应用
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta name="author" content="Www.XiaZaiBa.Com" />
<title>无标题 1</title>
</head>
<body>
<form name="form1" action="<?php echo site_url('article/article_mod')?>" method="post">
标题：<input name="title" type="text" value="<?php echo $title;?>" /><br />
内容：<input name="content" type="text" value="<?php echo $content?>" /><br />
添加人：<input name="add_man" type="text" value="<?php echo $add_man;?>" /><br />
添加时间：系统自动记录<br />
状态：<input name="tag" type="radio" value="1" <?php if($tag==1)echo 'checked';?> />显示 <input name="tag" type="radio" value="0" <?php if($tag==0)echo 'checked';?> />暗藏<br />
<input type="submit" name="Submit" value="提交" />
<input type="hidden" value="<?php echo $id;?>" name="id" />
</form>
</body>
</html>