Using jQuery+Ajax in PHP to implement paging query function
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='prev'>«</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='active'><a>"+i+"</a></li>";
}else{
str+= "<li><a class='item'>"+i+"</a></li>";
}
}
}
//下一页
str+="<li><a id='next'>»</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"];
$tj = " areaname like '%{$gjz}%' or areacode like '%{$gjz}%' or parentareacode like '%{$gjz}%' ";
}
$tg = ($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
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