初学PHP，花了几晚上写了个留言板，请高手指正 p.s.我的空间不支持PHP，不能提供演示了T_T 数据库结构：(库名：lyb)表一:admin 字段:id(int11)name(varchvr)password(var
初学PHP，花了几晚上写了个留言板，请高手指正
p.s.我的空间不支持PHP，不能提供演示了T_T
数据库结构：(库名：lyb)
表一: admin
字段: id(int11) name(varchvr) password(varchvr)
表二: lo
字段: id(int11) username(varchvr) sex(varchvr) qq(varchvr) email(varchvr) info(text) ip(varchvr) submit_time(datetime)
1 conn.php(连接数据库文件)
<?php mysql_connect("localhost","root","");//连接数据库 mysql_select_db("lyb");//选择数据库 ?> 2 header.php(公用头部文件)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>银子留言板 Version 1.0</title> </head> <link href="css.css" rel="stylesheet" type="text/css" /> <body> <?php session_start(); ?> <div id="head"> <div id="head_l"> <ul> <li><a href="index.php">偶要看留言</a></li> <li><a href="post.php">偶要发表</a></li> <?php //session_start();//DOFY同学指出本句前不能有任何输出内容，就此改正 if($_SESSION["key"]==1){//如果获取的SESSION为1则显示管理项 ?> <li><a href="adminexit.php">退出管理</a></li> <? } else { ?> <li><a href="admin.php">偶要管理</a></li> <?}?> </ul> </div> <div id="head_r">银子留言板 Version 1.0</div> </div>3 footer.php(公用底部文件)
<?php $counterFile="conter.xml"; function displayCounter($counterFile){ $fp = fopen($counterFile,"rw"); $num = fgets($fp,5); $num += 1; print "<div id=/"footer/">银子留言板 Version 1.0 您是第 "."$num"." 位无聊的银</div>"; exec("rm -rf $counterFile"); exec("echo $num > $counterFile"); } if(!file_exists($counterFile)){ exec("echo 0 > $counterFile"); } displayCounter($counterFile); ?> </body> </html> 4 index.php(首页)
<?php require_once("conn.php"); require_once("header.php"); session_start(); //分页代码开始 $pagesize = 10;//设置每页显示条数 $rs = mysql_query("select count(*) from lo");//取得记录总数，计算总页数用 $myrow = mysql_fetch_array($rs); $numrows = $myrow[0];//计算总记录 $pages = intval($numrows/$pagesize); if($numrows%$pagesize)$pages++;//设置页数 if(isset($_GET['page'])) { $page = intval($_GET['page']); } else { $page = 1;//设为第一页 } $offset = $pagesize*($page-1);//计算记录偏移量 //分页代码结束 $sql = "select id,username,sex,qq,email,info,ip,DATE_FORMAT(submit_time, '%Y年%m月%d日 %T' ) from lo order by id desc limit $offset,$pagesize";//用到了DATE-FORMAT格式化日期格式 $result = mysql_query($sql); $num = mysql_num_rows($result); if($num>0){ while($row = mysql_fetch_array($result)) { //echo print_r($row); if($row[2]=="男")//这个使性别改成你想要的名称^_^ { $sex = "帅锅"; } else { $sex = "美女"; } ?> <div id="show"> <p class="num">第 [<?= $row[0] ?>] 条留言<p> <p class="unline">留言人:<span class="blue"><?= $row[1]?></span> 性别:<?= $sex ?> 留言时间：<?= $row[7] ?> <? if($row[3]) {?> <a href="http://wpa.qq.com/msgrd?V=1&Uin=<?= $row[3] ?>&Site=http://www.loai.cn&Menu=yes"><img src="img/qq.gif" alt="<?= $row[3]?>" /></a><? } ?><? if($row[4]){ ?> <a href="mailto:<?= $row[4] ?>"><img src="img/email.gif" alt="<?= $row[4]?>" /></a> <? }?><? if($_SESSION["key"]==1){ ?> IP:<?= $row[6] ?> <a href="update.php?wuleying&id=<?= $row[0]?>">更改</a> <a href="delete.php?wuleying&id=<?= $row[0]?>">删除</a><?}?></a></p> <p class="blue">留言内容:</p> <div id="show_info"><?= nl2br(htmlspecialchars($row[5])) ?></div> </div> <?php } } else { echo "<div id=/"show/">无数据......</div>"; } ?> <div id="show_page"> <p> <?php $first=1; $prev=$page-1; $next=$page+1; $last=$pages; if($page==1&&$pages>1) { echo "首页 | "; echo "上一页 | "; echo "<a href=/"index.php?page=".$next."/">下一页</a> | "; echo "<a href=/"index.php?page=".$last."/">尾页</a> | "; } elseif($page>=1&&$page!=$pages&&$num>0) { echo "<a href=/"index.php?page=".$first."/">首页</a> | "; echo "<a href=/"index.php?page=".$prev."/">上一页</a> | "; echo "<a href=/"index.php?page=".$next."/">下一页</a> | "; echo "<a href=/"index.php?page=".$last."/">尾页</a> | "; } elseif($page==$pages&&$page!=1) { echo "<a href=/"index.php?page=".$first."/">首页</a> | "; echo "<a href=/"index.php?page=".$prev."/">上一页</a> | "; echo "下一页 | "; echo "尾页 | "; } elseif($page==$pages) { echo "首页 | "; echo "上一页 | "; echo "下一页 | "; echo "尾页 | "; } else { echo "首页 | "; echo "上一页 | "; echo "下一页 | "; echo "尾页 | "; } ?> 共 <span><?= $pages ?></span> 页 | 当前第 <span><?= $page ?></span> 页 | 共 <span><?=$numrows ?></span> 条留言</p> </div> <?php mysql_close(); require_once("footer.php"); ?> 5 post.php(提交留言页面)
<? require_once("header.php"); ?> <div id="input"> <form method="post" action="input.php" name="form1"> <h1>提交留言</h1> <p>姓名 ：<input type="text" name="name" size="20" class="y" /> </p> <p>性别 ：<input name="sex" type="radio" value="男" checked/> 帅锅 <input type="radio" name="sex" value="女"/> 美女</p> <p>Q Q ：<input type="text" name="qq" class="y" /> (可选填)</p> <p>Email：<input type="text" name="email" class="y" /> (可选填)</p> <p>留言内容：</p> <p><textarea name="info" rows="5" cols="40"></textarea></p> <p class="cen"> <input type="submit" value="偶填好了" /> <input type="reset" value="偶要重写"> </p> <p class="cen1">银子留言板 Version 1.0</p> </form> </div> </body> </html>6 input.php(插入留言)
<?php require_once("conn.php"); $username = $_POST['name']; $sex = $_POST['sex']; $qq = $_POST['qq']; $email = $_POST['email']; $info = $_POST['info']; if (strrpos($username,"<")!==false || strrpos($username,">")!==false||strrpos($username,"@")!==false||strrpos($username,"/"")!==false||strrpos($username,"'")!==false||strrpos($username,"_")!==false) { echo "<script>alert('名称不能有特殊字符！');location.href='post.php';</script>"; exit(); } if (!ereg("^[0-9]{0,}$",$qq))//用正则检查QQ格式 { echo "<script>alert('OICQ信息有错误！必须是数字！');location.href='post.php';</script>"; exit(); } if($email) {//如果填写了邮箱就用正则检查邮箱格式 if (!ereg("^[a-zA-Z0-9_/-/.]+@[a-zA-Z0-9/-]+/.[a-zA-Z0-9/-/.]+$",$email)) { echo "<script>alert('email格式不正确！');location.href='post.php';</script>"; exit(); } } if(!$username) { echo "<script>alert('名称不能为空哦！');location.href='post.php';</script>"; exit(); } elseif(!$info) { echo "<script>alert('留言不能为空哦！');location.href='post.php';</script>"; exit(); } else { $ip = getenv('REMOTE_ADDR');//获取客户端IP地址 $sql = "insert into lo (username,sex,qq,email,info,ip,submit_time) values ('$username','$sex','$qq','$email','$info','$ip',NOW())"; $result = mysql_query($sql); mysql_close(); echo "<script>alert('提交成功！返回首页');location.href='index.php';</script>"; } ?>7 update.php(修改留言页)
<?php session_start(); require_once('conn.php'); require_once('header.php'); if($_SESSION["key"]==1) { $id = $_GET['id']; $sql = "select * from lo where id= ".$id; $result = mysql_query($sql); $row = mysql_fetch_array($result); ?> <div id="update"> <form action="updatepost.php?wuleying&id=<?= $row[0] ?>" method="post"> <h1>修改留言</h1> <p>姓名：<input type="text" value="<?= $row[1]?>" name="name" class="y"></input></p> <p>留言：</p> <p><textarea name="info" rows="5" cols="35"><?= $row[5] ?></textarea></p> <p class="cen"><input type="submit" value="偶要修改" /></p> <p class="cen1">银子留言板 Version 1.0</p> </form> <div><?php } else { header('location:index.php'); } ?> 8 updatepost(修改提交页)
<?php require_once('conn.php'); $username = $_POST['name']; $info = $_POST['info']; $id = $_GET['id']; //echo $id; $sql = "update lo set username= '".$username."',info='".$info."' where id=".$id; mysql_query($sql); echo "<script>alert('修改成功！');location.href='index.php';</script>"; ?> 9 delete.php(删除留言页)
<?php session_start(); require_once('conn.php'); $id=$_GET['id']; if($_SESSION["key"]==1) { $sql = "delete from lo where id=".$id; mysql_query($sql); echo "<script>location.href='index.php'</script>"; } else { header('location:index.php'); } ?>10 admin.php(管理登录页)
<?php require_once('conn.php'); require_once('header.php'); ?> <div id="admin"> <form method="post" action="adminpost.php"> <h1>管理员登录</h1> <p>姓名 : <input type="text" name="name" size="20" class="y" /> </p> <p>密码 : <input type="password" name="password" size="20" class="y" /> </p> <p class="cen"><input type="submit" value="管理员登录" /></p> <p class="cen1">银子留言板 Version 1.0</p> </form> </div>11 adminpost.php(管理验证页)
<?php session_start(); require_once('conn.php'); $name = $_POST['name']; $password = $_POST['password']; $sql = "select * from admin where name='".$name."'"; $result = mysql_query($sql); $num = mysql_num_rows($result); if (strrpos($name,"<")!==false || strrpos($name,">")!==false||strrpos($name,"@")!==false||strrpos($name,"/"")!==false||strrpos($name,"'")!==false||strrpos($name,"_")!==false) { echo "<script>alert('不能有特殊字符！');location.href='admin.php';</script>"; } if($num) {//如果用户存在，就检查密码是否正确 $rs = mysql_fetch_array($result); if($rs[2]!=$password) { echo "<script>alert('密码不正确，请确认后输入！');location.href='admin.php';</script>"; } else {//用户名，密码都正确，注册SESSION变量，然后跳转到首页 $_SESSION["key"]=1; echo "<script>alert('登录成功！');location.href='index.php';</script>"; } } else {//如果没有这个用户 echo "<script>alert('没有这个用户，请确认后输入！');location.href='admin.php';</script>"; } ?>12 adminexit.php(退出管理页)
<?php session_start(); $_SESSION["key"] = 0;//使SESSION不为1，0为游客，1为管理员 header('location:index.php'); ?> 只是些基本的东东，像MD5加密，UBB，表情图片,添加管理员账号，回复留言(-_!!)等我都没加上去，有兴趣的同学可以完善下，不足的地方请指出^_^
管理员账号:wuleying 密码:123456
wuleying_gbook.rar
