php如何实现照片上传功能

学习PHP建站很久啦，很想实现PHP网站上传功能。

首先打开Dreamweaver CS5，输入以下代码：

<?

if($_COOKIE[name])

{

?>

<!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=utf-8" />

<title>上传照片</title>

<link href="mystyle.css" rel="stylesheet" type="text/css" />

</head>

<body>

<h1 align="center">相册管理系统</h1>

<p align="center"> <strong>[<?=$_COOKIE[name]?>]</strong>的相册</p>

<p align="center">

<a href="ch17-7.php">创建相册</a>

<a href="ch17-5.php">进入相册</a>

<a href="ch17-6.php">设置首页照片</a>

<a href="ch17-9.php">删除照片</a>

<a href="ch17-10.php">更改主人密码</a>

<a href="ch17-11.php">消息接收

<?

require "ch17-1.php";

$link=mysql_connect($db_host,$db_user,$db_pass);

mysql_select_db($db_name,$link);

$sql="select * from $table_ms where receiver='$_COOKIE[name]' && isread='no'";

$result=mysql_query($sql,$link) or die(mysql_error());

$num=@mysql_num_rows($result);//获得记录数

if($num!=0)

{

echo "<b>(".$num.")</b>";

}

?>

</a>

<a href="ch17-12.php">退出登录</a></p>

<?

if($_FILES[upfile][name]!="") //判断是否上传了文件

{

$album=$_POST[album]; //获取相册名

$details=nl2br($_POST[details]); //获取相片描述

$time=$_POST[time]; //获取相片上传时间

$filepath="upload/";//定义相片保存路径

$filename=$filepath.$_FILES[upfile][name];//新的路径及文件名

$size=$_FILES[upfile][size];

if(copy($_FILES[upfile][tmp_name],$filename))//复制文件的目标路径

{

unlink($_FILES[upfile][tmp_name]);//删除原有文件

require "ch17-1.php";

$link=mysql_connect($db_host,$db_user,$db_pass) or die(mysql_error());

mysql_select_db($db_name,$link);

$sql="insert into $table_ps(album_name,user,img_name,size,time,details) values('$album','$_COOKIE[name]','$filename','$size','$time','$details')"; //添加新相片

if(mysql_query($sql,$link))

{

echo "<head>";

echo "<title>指定文件已经成功上传！！1秒后自动跳转查看相册</title>";

echo "<meta http-equiv=\"refresh\" content=\"1; url=ch17-5.php\">";

echo "</head>";

echo "<body><center>指定文件已经成功上传！！1秒后自动跳转查看相册......</center></body>";

echo "</html>";

}

else

{

echo "<head>";

echo "<meta http-equiv=\"refresh\" content=\"1; url=ch17-8.php\">";

echo "</head>";

echo "<body><center>文件上传失败，1秒后重新上传...</center></body>";

echo "</html>";

}

}

}

?>

<h1 align="center">上传照片</h1>

<form action="ch17-8.php" method="post" enctype="multipart/form-data" name="form1" id="form1">

<table width="583" border="1" align="center">

<tr>

<td width="115">选择图片：</td>

<td width="424">

<input name="upfile" type="file" id="upfile" />

</td>

</tr>

<tr>

<td>选择相册</td>

<td>

<select name="album">

<?

require "ch17-1.php";

$link=mysql_connect($db_host,$db_user,$db_pass) or die(mysql_error());

mysql_select_db($db_name,$link);

$sql="select * from $table_album where user='$_COOKIE[name]'";

$result=mysql_query($sql,$link);

while($row=mysql_fetch_array($result))

{

echo "<option>".$row[album_name]."</option>";

}

?>

</select></td>

</tr>

<tr>

<td>输入说明：</td>

<td>

<textarea name="details" id="details" cols="45" rows="5"></textarea></td>

</tr>

<tr>

<td> </td>

<td>

<input type="submit" name="Submit" value="确认提交" />

<input type="reset" name="Submit2" value="重新选择" />

</td>

</tr>

</table>

<label></label>

<p>

<label></label>

<label></label>

<input type="hidden" name="time" value="<? echo date(y年m月d日H时i分);?>" />

<p> </p>

</form>

</body>

</html>

<?

}

else

{

echo "<html><head><meta http-equiv='Content-Type' content='text/html; charset=UTF-8'/>";

echo "<meta http-equiv='refresh' content='1; url=ch17-3.php'>";

echo "</head>";

echo "<body>您不是管理员，不能进入该页，1秒后返回首页……</body>";

echo "</html>";

}

?>