Simple Ajax no refresh paging effect_AJAX related-JS Tutorial-php.cn

Simple Ajax no refresh paging effect_AJAX related

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Release： 2017-06-28 14:02:35

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This article mainly introduces in detail the code to simply implement the Ajax non-refresh paging effect, which has certain reference value. Interested friends can refer to

Ajax non-refresh paging effect, as follows Code implementation

<!doctype html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Ajax无刷新分页效果</title>

 <script type="text/javascript">
 function showpage(url) {
  var xhr = new XMLHttpRequest();
  xhr.onreadystatechange = function () {
  if (xhr.readyState == 4) {
   document.getElementById("result").innerHTML = xhr.responseText;
  }
  }

  xhr.open(&#39;get&#39;,url);
  xhr.send(null);
 }

 window.onload = function () {
  showpage(&#39;page.php&#39;);
 }
 </script>
</head>
<body>
  <h2 style="text-align: center">Ajax无刷新分页效果</h2>
  <p id="result"></p>
</body>
</html>

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The paging code found online can be used for personal testing~

/*
* Created on 2011-07-28
* Author : LKK , http://lianq.net
* 使用方法：
require_once(&#39;mypage.php&#39;);
$result=mysql_query("select * from mytable", $myconn);
$total=mysql_num_rows($result); //取得信息总数
pagepide($total,10); //调用分页函数

//数据库操作
$result=mysql_query("select * from mytable limit $sqlfirst,$shownu", $myconn);
while($row=mysql_fetch_array($result)){
...您的操作
}
echo $pagecon; //输出分页导航内容
*/

//if(!function_exists("pagepide")){
#$total 信息总数
#$shownu 显示数量,默认20
#$url 本页链接
 function pagepide($total,$shownu=20,$url=&#39;&#39;){

#$page 当前页码
#$sqlfirst mysql数据库起始项
#$pagecon 分页导航内容
 global $page,$sqlfirst,$pagecon,$_SERVER;
 $GLOBALS["shownu"]=$shownu;

 if(isset($_GET[&#39;page&#39;])){
  $page=$_GET[&#39;page&#39;];
 }else $page=1;

#如果$url使用默认,即空值,则赋值为本页URL
 if(!$url){ $url=$_SERVER["REQUEST_URI"];}

#URL分析
 $parse_url=parse_url($url);
 @$url_query=$parse_url["query"]; //取出在问号?之后内容
 if($url_query){
  $url_query=preg_replace("/(&?)(page=$page)/","",$url_query);
  $url = str_replace($parse_url["query"],$url_query,$url);
  if($url_query){
  $url .= "&page";
  }else $url .= "page";
 }else $url .= "?page";

#页码计算
 $lastpg=ceil($total/$shownu); //最后页,总页数
 $page=min($lastpg,$page);
 $prepg=$page-1; //上一页
 $nextpg=($page==$lastpg ? 0 : $page+1); //下一页
 $sqlfirst=($page-1)*$shownu;

#开始分页导航内容
 $pagecon = "显示第 ".($total?($sqlfirst+1):0)."-".min($sqlfirst+$shownu,$total)." 条记录，共 <B>$total</B> 条记录";
 if($lastpg<=1) return false; //如果只有一页则跳出

// if($page!=1) $pagecon .=" <a href=&#39;$url=1&#39;>首页</a> "; else $pagecon .=" 首页 ";
// if($prepg) $pagecon .=" <a href=&#39;$url=$prepg&#39;>前页</a> "; else $pagecon .=" 前页 ";
// if($nextpg) $pagecon .=" <a href=&#39;$url=$nextpg&#39;>后页</a> "; else $pagecon .=" 后页 ";
// if($page!=$lastpg) $pagecon.=" <a href=&#39;$url=$lastpg&#39;>尾页</a> "; else $pagecon .=" 尾页 ";

 if($page!=1) $pagecon .=" <a href=&#39;javascript:showpage(\"$url=1\")&#39;>首页</a> "; else $pagecon .=" 首页 ";
 if($prepg) $pagecon .=" <a href= &#39;javascript:showpage(\"$url=$prepg\")&#39;>前页</a> "; else $pagecon .=" 前页 ";
 if($nextpg) $pagecon .=" <a href= &#39;javascript:showpage(\"$url=$nextpg\")&#39;>后页</a> "; else $pagecon .=" 后页 ";
 if($page!=$lastpg) $pagecon.=" <a href= &#39;javascript:showpage(\"$url=$lastpg\")&#39;>尾页</a> "; else $pagecon .=" 尾页 ";

#下拉跳转列表,循环列出所有页码
// $pagecon .="　到第 <select name=&#39;topage&#39; size=&#39;1&#39; onchange=&#39;window.location=\"$url=\"+this.value&#39;>\n";
 $pagecon .="　到第 <select name=&#39;topage&#39; size=&#39;1&#39; onchange=&#39;showpage(\"$url=\"+this.value)&#39;>\n";
 for($i=1;$i<=$lastpg;$i++){
  if($i==$page) $pagecon .="<option value=&#39;$i&#39; selected>$i</option>\n";
  else $pagecon .="<option value=&#39;$i&#39;>$i</option>\n";
 }
 $pagecon .="</select> 页，共 $lastpg 页";

 return $page;
 }
//}else die(&#39;pagepide()同名函数已经存在!&#39;);

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The following is a simple paging display I made

<?php

 header("Content-type:text/html; charset=utf-8");
 $link = mysqli_connect(&#39;localhost&#39;,&#39;root&#39;,&#39;123&#39;,&#39;good&#39;);
if (!$link)
{
 die("连接错误: " . mysqli_connect_error());
}

$sql = "SELECT * FROM ecs_category";
$qry = mysqli_query($link,$sql);
$total = mysqli_num_rows($qry);
$per = 10;

$page = pagepide($total,$per);

$sql = "SELECT cat_id,cat_name FROM category limit $sqlfirst,$shownu";
 $result = mysqli_query($link,$sql);

 //$goods = mysqli_fetch_all($result,MYSQLI_ASSOC);

 //mysqli_free_result($result);

echo <<<eof
 <style type="text/css">
 table{width:500px;margin:auto;border: 1px solid black; border-collapse:collapse;text-align:center;}
 td{border: 1px solid black;}
 </style>
 <table>
  <tr><td>序号</td><td>商品编号</td><td>商品类型</td></tr>
eof;

 $num = ($page - 1) * $per;
// foreach ($goods as $k => $v) {
 while($goods = mysqli_fetch_assoc($result)){
 echo "<tr>";
 echo "<td>".++$num."</td>";
 echo "<td>$goods[cat_id]</td>";
 echo "<td>$goods[cat_name]</td>";
 echo "</tr>";
 }

 echo "<tr><td colspan=&#39;3&#39;>$pagecon</td></tr>";
 echo "</table>";

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Simple Ajax no refresh paging effect_AJAX related

The page will jump without refreshing, the URL will not change, and you can see the data interaction of the website

Simple Ajax no refresh paging effect_AJAX related

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