分页在后台管理中是经常使用的功能,分页显示方便大量数据的管理。
实例代码如下:
<meta charset="utf-8"> <title>用户列表</title> <span style="color: #000000;">php </span><span style="color: #800080;">$con</span> = <span style="color: #008080;">mysql_connect</span>("localhost","root",""<span style="color: #000000;">); </span><span style="color: #008080;">mysql_query</span>("set names utf8"<span style="color: #000000;">); </span><span style="color: #008080;">mysql_select_db</span>("zhiye",<span style="color: #800080;">$con</span><span style="color: #000000;">); </span><span style="color: #800080;">$pageSize</span> = 1; <span style="color: #008000;">//</span><span style="color: #008000;">每页显示的数量</span> <span style="color: #800080;">$rowCount</span> = 0; <span style="color: #008000;">//</span><span style="color: #008000;">要从数据库中获取</span> <span style="color: #800080;">$pageNow</span> = 1; <span style="color: #008000;">//</span><span style="color: #008000;">当前显示第几页 //如果有pageNow就使用,没有就默认第一页。</span> <span style="color: #0000ff;">if</span> (!<span style="color: #0000ff;">empty</span>(<span style="color: #800080;">$_GET</span>['pageNow'<span style="color: #000000;">])){ </span><span style="color: #800080;">$pageNow</span> = <span style="color: #800080;">$_GET</span>['pageNow'<span style="color: #000000;">]; } </span><span style="color: #800080;">$pageCount</span> = 0; <span style="color: #008000;">//</span><span style="color: #008000;">表示共有多少页</span> <span style="color: #800080;">$sql1</span> = "select count(id) from user"<span style="color: #000000;">; </span><span style="color: #800080;">$res1</span> = <span style="color: #008080;">mysql_query</span>(<span style="color: #800080;">$sql1</span><span style="color: #000000;">); </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$row1</span>=<span style="color: #008080;">mysql_fetch_row</span>(<span style="color: #800080;">$res1</span><span style="color: #000000;">)){ </span><span style="color: #800080;">$rowCount</span> = <span style="color: #800080;">$row1</span>[0<span style="color: #000000;">]; } </span><span style="color: #008000;">//</span><span style="color: #008000;">计算共有多少页,ceil取进1</span> <span style="color: #800080;">$pageCount</span> = <span style="color: #008080;">ceil</span>((<span style="color: #800080;">$rowCount</span>/<span style="color: #800080;">$pageSize</span><span style="color: #000000;">)); </span><span style="color: #008000;">//</span><span style="color: #008000;">使用sql语句时,注意有些变量应取出赋值。</span> <span style="color: #800080;">$pre</span> = (<span style="color: #800080;">$pageNow</span>-1)*<span style="color: #800080;">$pageSize</span><span style="color: #000000;">; </span><span style="color: #800080;">$sql2</span> = "select * from user limit <span style="color: #800080;">$pre</span>,<span style="color: #800080;">$pageSize</span>"<span style="color: #000000;">; </span><span style="color: #800080;">$res2</span> = <span style="color: #008080;">mysql_query</span>(<span style="color: #800080;">$sql2</span><span style="color: #000000;">);</span> <span style="color: #0000ff;">while</span>(<span style="color: #800080;">$row</span>=<span style="color: #008080;">mysql_fetch_assoc</span>(<span style="color: #800080;">$res2</span><span style="color: #000000;">)){ </span><span style="color: #0000ff;">echo</span> <span style="color: #800080;">$row</span>['user_name']."<br>"<span style="color: #000000;">; </span><span style="color: #0000ff;">echo</span> <span style="color: #800080;">$row</span>['name']."<br>"<span style="color: #000000;">; </span><span style="color: #0000ff;">echo</span> <span style="color: #800080;">$row</span>['email']."<br>"<span style="color: #000000;">; </span><span style="color: #0000ff;">echo</span> <span style="color: #800080;">$row</span>['password']."<br>"<span style="color: #000000;">; </span><span style="color: #0000ff;">echo</span> <span style="color: #800080;">$row</span>['tel']."<br>"<span style="color: #000000;">; } </span><span style="color: #0000ff;">for</span> (<span style="color: #800080;">$i</span>=1;<span style="color: #800080;">$i</span>$pageCount;<span style="color: #800080;">$i</span>++<span style="color: #000000;">){ </span><span style="color: #0000ff;">echo</span> "<a href="userList.php?pageNow=<span%20style=%22color:%20#800080;%22>%24i</span>"><span style="color: #800080;">$i</span></a> "<span style="color: #000000;">; } </span>?>

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