How to use jQuery+Ajax to implement multi-functional paging query operations in PHP-PHP Tutorial-php.cn

How to use jQuery+Ajax to implement multi-functional paging query operations in PHP

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Release： 2023-03-16 12:30:01

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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="stylesheet" type="text/css"/>
    </head>
    <style>
        .header{
            margin-top: 20px;
        }    </style>
    <body>
        <p style="margin-top: 20px; margin-top: 20px;">
            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 style="margin:0 auto; width:500px;">
            <ul class="pagination" id="fenye">

            </ul>
        </p>

        </body> 
</html>

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2. Then make 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;>&laquo;
    </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;>&raquo;
    </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;
}

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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)

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Small plug-in: Processing page zyschuli for the total number of pages .php

<?php
    require_once "./DBDA.class.php";
    $db = new DBDA();
    $sql = "select count(*) from chinastates";
    echo $db->StrQuery($sql,0);

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The effect is as shown in the figure:

Keyword query:

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