這篇文章主要介紹了一個簡單的php分頁代碼,提供給大家學習一下了,代碼中有注釋,也可以直接使用
代碼如下: <?php header("content-type:text/html;charset=utf-8"); //數據庫連接 $conn = mysql_connect("localhost", "root", "111") or die("not connnected : ".mysql_error()); mysql_select_db("test", $conn); mysql_query("set names utf8"); //查詢共有多少行數據 $sql1 = "select count(*) from user"; $ret1 = mysql_query($sql1); $row1 = mysql_fetch_row($ret1); $tot = $row1[0]; //每頁多少行數據 $length = 5; //總頁數 $totpage = ceil($tot / $length); //當前頁數 $page = @$_GET['p'] ? $_GET['p'] : 1; //limit 下限 $offset = ($page - 1) * $length; echo "<center>"; echo "<h2>php padding</h2>"; echo "<table width='700px' border='1px' >"; echo "<tr>"; echo "<th>ID</th>"; echo "<th>USER</th>"; echo "<th>PASS</th>"; echo "</tr>"; //將查詢出來的數據用表格顯示 $sql2 = "select * from user order by id limit {$offset}, {$length}"; $ret2 = mysql_query($sql2); while ($row2 = mysql_fetch_assoc($ret2)) { echo "<tr>"; echo "<td>{$row2['id']}</td><td>{$row2['name']}</td><td>{$row2['pass']}</td>"; echo "</tr>"; } echo "</table>"; //上一頁和下一頁 $prevpage = $page - 1; if ($page >= $totpage) { $nextpage = $totpage; } else { $nextpage = $page + 1; } //跳轉 echo "<h3><a href='index.php?p={$prevpage}'>上一頁</a>|<a href='index.php?p={$nextpage}'>下一頁</a></h3>"; echo "</center>"; 核心點: <1>“$sql2 = "select * from user order by id limit {$offset}, {$length}";”,$offset、$length和頁數之間的關系。 <2>上一頁和下一頁的獲得方式,以及臨界點。