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Using jQuery+Ajax in PHP to implement paging query function

巴扎黑Original: 2017-09-21 10:37:271969browse

The following editor will bring you an article using jQuery+Ajax to implement multi-function paging query in PHP (example explanation). The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor and take a look.

1. First make the main page Ajax_pag.php

The code is as follows:

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Ajax做分页</title>
    <script src="bootstrap/js/jquery-1.11.2.min.js"></script>
    <script src="Ajax_pag.js"></script>
    <script src="bootstrap/js/bootstrap.min.js"></script>
    <link href="bootstrap/css/bootstrap.min.css" rel="external nofollow" rel="stylesheet" type="text/css"/>
  </head>
  <style>
    .header{
      margin-top: 20px;
    }
  </style>
  <body>
    <p >
      关键字：
      <input id="key" type="text" name="gjz"/>
      <input type="button" value="查询" id="ck" />
      
    </p>
    <table class="table table-bordered header">
      <thead>
        <tr>
          <th>地区代号</th>
          <th>地区名称</th>
          <th>父级代号</th>
        </tr>
      </thead>
      <tbody id="list">

      </tbody>
    </table>

    <p >
      <ul class="pagination" id="fenye">

      </ul>
    </p>

    </body> 
</html>

2. Then do the paging query JS page Ajax_pag.js

The code is as follows:

//ajax分页开始
    var ts = 10;//每页显示的条数
    var page = 1;//当前页
    $(document).ready(function(e) {
      //页面加载数据
      Load();
      //加载分页列表
      Loadlist();
      $("#ck").click(function(){    
    //页面加载数据
    Load();
    //加载分页列表
    Loadlist();    
  })
})        
    
    //加载数据的方法
    function Load(){  
      var gjz = $("#key").val();
        $.ajax({
            async:false,
            url:"pagechuli.php",
            data:{page:page,ts:ts,gjz:gjz},//page是显示的页数；ts是显示的条数
            type:"POST",
            dataType:"JSON",               
            success: function(data){                             
                  var str ="";            
                  for(var k in data)
                  {
                  str +="<tr><td>"+data[k][0]+"</td><td>"+data[k][1]+"</td><td>"+data[k][2]+"</td></tr>";
                  }
                  $("#list").html(str);//把拼接好的字符串放到要显示的thody里面                          
                }
              })
            }  
    //加载分页列表      
    function Loadlist(){
      var str ="";    
      //上一页
      str+="<li><a id=&#39;prev&#39;>«</a></li>";
      //加载列表
      for(var i=page-4;i<page+5;i++){
        //限制条件
        if(i>0 && i<=zys()){
        //判断当前页
        if(i==page){  
          str+= "<li class=&#39;active&#39;><a>"+i+"</a></li>";  
      }else{
      str+= "<li><a class=&#39;item&#39;>"+i+"</a></li>";
      }
    }    
  }
      //下一页
      str+="<li><a id=&#39;next&#39;>»</a></li>";
      $("#fenye").html(str);
      
      $("#prev").click(function(){
        if(page>1){
          page--;          
        }
        //页面加载数据
        Load();
        //加载分页列表
        Loadlist();
      })
      
      $(".item").click(function(){
        var p = $(this).text();//取到的是字符串,转化为整数
        page = parseInt(p);
        //页面加载数据
        Load();
        //加载分页列表
        Loadlist();
      })
      
      $("#next").click(function(){
        if(page<zys()){
          page++;
        }
        //页面加载数据
        Load();
        //加载分页列表
        Loadlist();
      })
      
    }
  
  
  
  
  //总页数
  function zys(){
    var zys = 0;
    $.ajax({
      async:false,
      url:"zyschuli.php",
      dataType:"TEXT",
      success:function(data){
        zys = Math.ceil(data/ts);
      }
    });
    return zys;
  }

3. Finally, do the paging query processing page pagechuli.php

The code is as follows:

<?php
$gjz = $_POST["gjz"];
$page = $_POST["page"];//获取页数显示值
$ts = $_POST["ts"];//获取每页条数显示值

require_once "./DBDA.class.php";
$db = new DBDA();

$tj = " 1=1 ";
if(!empty($_POST["gjz"])){
  $gjz = $_POST["gjz"];
  $tj = " areaname like &#39;%{$gjz}%&#39; or areacode like &#39;%{$gjz}%&#39; or parentareacode like &#39;%{$gjz}%&#39; ";
}

$tg = ($page-1)*$ts;//每页显示$ts条数据，这里显示的就是当前页的$tg条数据。
$sql = "select * from chinastates where {$tj} limit {$tg},{$ts}";
echo $db->JsonQuery($sql,0)

Small plug-in: Total page processing page zyschuli.php

<?php
require_once "./DBDA.class.php";
$db = new DBDA();

$sql = "select count(*) from chinastates";
echo $db->StrQuery($sql,0);

The effect is as shown

Keyword query:

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