PHP怎麼实现分页显示功能网络上下载了很多分页显示

如果不理解分页是什么的话，下多少代码都没有意义
分页就是将待输出的内容分为若干份，每次请求时输出其中一份
因此，请求的 url 至少要传递一个变量，指示要显示的哪一份（页）
仅此而已
总数据  $a
每页显示数据  $b
$c=$a/$b   总页数
当前页  $d$e=$d*$b  //计算当前页加之前页数的数据条数
limit $e,$b
基本思路，语法查手册，如果错了大神们帮忙指正一下，菜鸟一枚
<?php
include_once '../init.php';
//var_dump($_GET);
if(!empty($_GET)){
$name = $_GET['name'];
//echo $name;
$where = "where name like '%{$name}%'";
}

//分页开始
//每页的条数
$num = 8;
//统计该表总共的条目
$sql = "select count(id) total from ".PRE."user";
//echo $sql;
$result = mysqli_query($link,$sql);
//var_dump($result);
if($result && mysqli_num_rows($result)>0){
$row = mysqli_fetch_assoc($result);
}
//var_dump($row);
//总页数
$total = $row['total'];
//echo $total;
//判断总共有几页
$amount = ceil($total/$num);
//echo $amount;
//页码？？
$page = empty($_GET['page'])?'1':(int)$_GET['page'];
$page = max(1,$page);
$page = min($page,$amount);

//偏移量
$offset = ($page-1)*$num;

$sql = "select id,name,role,`lock` from ".PRE."user {$where} limit {$offset},{$num}";
//echo $sql;
$result = mysqli_query($link,$sql);
//var_dump($result);
if($result && mysqli_num_rows($result)>0){
$userlist = array();
while($row = mysqli_fetch_assoc($result)){
$userlist[]=$row;
}
}
//var_dump($userlist);
$prev = $page -1;
$next = $page + 1;

/* $sql = "SELECT id,name,role,`lock` FROM sy15_user";
//echo $sql;
$result = mysqli_query($link,$sql);
//var_dump($result);
if($result && mysqli_num_rows($result)>0){
$userlist = array();
while($row = mysqli_fetch_assoc($result)){
$userlist[] = $row;
}
} */
//var_dump($userlist);
$i=1;
?><html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>主要内容区main</title>
<link href="../css/css.css" type="text/css" rel="stylesheet" />
<link href="../css/main.css" type="text/css" rel="stylesheet" />
<link rel="shortcut icon" href="../images/main/favicon.ico" />
<style>
body{overflow-x:hidden; background:#f2f0f5; padding:15px 0px 10px 5px;}
#searchmain{ font-size:12px;}
#search{ font-size:12px; background:#548fc9; margin:10px 10px 0 0; display:inline; width:100%; color:#FFF; float:left}
#search form span{height:40px; line-height:40px; padding:0 0px 0 10px; float:left;}
#search form input.text-word{height:24px; line-height:24px; width:180px; margin:8px 0 6px 0; padding:0 0px 0 10px; float:left; border:1px solid #FFF;}
#search form input.text-but{height:24px; line-height:24px; width:55px; background:url(images/main/list_input.jpg) no-repeat left top; border:none; cursor:pointer; font-family:"Microsoft YaHei","Tahoma","Arial",'宋体'; color:#666; float:left; margin:8px 0 0 6px; display:inline;}
#search a.add{ background:url(images/main/add.jpg) no-repeat -3px 7px #548fc9; padding:0 10px 0 26px; height:40px; line-height:40px; font-size:14px; font-weight:bold; color:#FFF; float:right}
#search a:hover.add{ text-decoration:underline; color:#d2e9ff;}
#main-tab{ border:1px solid #eaeaea; background:#FFF; font-size:12px;}
#main-tab th{ font-size:12px; background:url(images/main/list_bg.jpg) repeat-x; height:32px; line-height:32px;}
#main-tab td{ font-size:12px; line-height:40px;}
#main-tab td a{ font-size:12px; color:#548fc9;}
#main-tab td a:hover{color:#565656; text-decoration:underline;}
.bordertop{ border-top:1px solid #ebebeb}
.borderright{ border-right:1px solid #ebebeb}
.borderbottom{ border-bottom:1px solid #ebebeb}
.borderleft{ border-left:1px solid #ebebeb}
.gray{ color:#dbdbdb;}
td.fenye{ padding:10px 0 0 0; text-align:right;}
.bggray{ background:#f9f9f9}
</style>
</head>
<body>

<table width="99%" border="0" cellspacing="0" cellpadding="0" id="searchmain">
  <tr>
    <td width="99%" align="left" valign="top">您的位置：用户管理</td>
  </tr>
  <tr>
    <td align="left" valign="top">
    <table width="100%" border="0" cellspacing="0" cellpadding="0" id="search">
   <tr>
    <td width="90%" align="left" valign="middle">
         <form method="get" action="./index.php">
         <span>管理员：</span>
         <input type="text" name="name" value="" class="text-word">
         <input name="" type="submit" value="查询" class="text-but">
         </form>
         </td>
     <td width="10%" align="center" valign="middle" style="text-align:right; width:150px;"><a href="add.html" target="mainFrame" onFocus="this.blur()" class="add">新增管理员</a></td>
   </tr>
</table>
    </td>
  </tr>
  <tr>
    <td align="left" valign="top">

    <table width="100%" border="0" cellspacing="0" cellpadding="0" id="main-tab">
      <tr>
        <th align="center" valign="middle" class="borderright">编号</th>
        <th align="center" valign="middle" class="borderright">管理帐号</th>
        <th align="center" valign="middle" class="borderright">权限</th>
        <th align="center" valign="middle" class="borderright">锁定</th>

        <th align="center" valign="middle">操作</th>
      </tr>
  <?php foreach($userlist as $value){?>
      <tr onMouseOut="this.style.backgroundColor='#ffffff'" onMouseOver="this.style.backgroundColor='#edf5ff'">

        <td align="center" valign="middle" class="borderright borderbottom"><?php echo $offset+$i++ ?></td>
        <td align="center" valign="middle" class="borderright borderbottom"><?php echo $value['name']?></td>
        <td align="center" valign="middle" class="borderright borderbottom">
<?php
switch($value['role']){
case 0:
echo "普通用户";
break;
case 1:
echo "管理员";
break;
case 2:
echo "超级管理员";
break;

}

?></td>
        <td align="center" valign="middle" class="borderright borderbottom"><?php echo $value['lock']?'<a href="./action.php?a=lock&id='.$value['id'].'&lock=0">锁定</a>':'<a href="./action.php?a=lock&id='.$value['id'].'&lock=1">未锁定</a>'?></td>

        <td align="center" valign="middle" class="borderbottom"><a href="./edit.php?id=<?php echo $i-1;?>&name=<?php echo $value['name']?>&role=<?php echo $value['role'];?>" target="mainFrame" onFocus="this.blur()" class="add">编辑</a><span class="gray"> | </span><a href="action.php?a=del&name=<?php echo $value['name']?>" target="mainFrame" onFocus="this.blur()" class="add">删除</a></td>
      </tr>
  <?php }?>

    </table></td>
    </tr>
  <tr>
    <td align="left" valign="top" class="fenye"><?php echo $total?>条数据 <?php echo $page?>/<?php echo $amount?>页  <a href="index.php?page=1" target="mainFrame" onFocus="this.blur()">首页</a>  <a href="index.php?page=<?php echo $prev?>" target="mainFrame" onFocus="this.blur()">上一页</a>  <a href="index.php?page=<?php echo $next?>" target="mainFrame" onFocus="this.blur()">下一页</a>  <a href="index.php?page=<?php echo $amount ?>" target="mainFrame" onFocus="this.blur()">尾页</a></td>
  </tr>
</table>
</body>
</html>这是我做的项目其中一个用户表遍历的分页

调试易

PHP怎麼实现分页显示功能网络上下载了很多分页显示

解决方案 »

PHP怎麼实现分页显示功能 网络上下载了很多分页显示

解决方案 »

PHP怎麼实现分页显示功能网络上下载了很多分页显示