php基础教程:限制大小的文件上传
conn.php:
<?php
$id=mysql_connect('localhost','root','root');
mysql_select_db("db_database12",$id);
mysql_query("set names gb2312");
?>
index.php:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>限制大小的文件上传</title>
<style type="text/css">
<!--
body {
margin-left: 00px;
margin-top: 0px;
margin-right: 0px;
margin-bottom: 0px;
}
-->
</style></head>
<body>
<table width="385" height="185" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="130" height="75"> </td>
<td width="200"> </td>
<td width="55"> </td>
</tr>
<form name="form1" method="post" action="index_ok.php" enctype="multipart/form-data">
<tr>
<td height="38"> </td>
<td align="center" valign="middle">
<input name="file3" type="file" id="file3" size="15" maxlength="150">
</td>
<td> </td>
</tr>
<tr>
<td height="30" align="right"> </td>
<td align="center" valign="top"><input type="submit" name="Submit" value="提交"> </td>
<td> </td>
</tr>
</form>
<tr>
<td height="42"> </td>
<td> </td>
<td> </td>
</tr>
</table>
</body>
</html>
index_ok.php:
<?php
session_start();
include("conn.php");
?>
<?php
if($Submit=="提交"){
$data=date("Y-m-d");
$file_name="files";
$filesize=$_FILES['file3']['size'];
if($filesize>2000000){
echo "对不起,您上传的文件超过了规定的大小!!";
echo "<meta http-equiv=\"Refresh\" content=\"3;url=index.php?lmbs=文件上传\">将在3秒钟后返回前页...";
}else{
$path = './upfiles/'. $_FILES['file3']['name'];
if (move_uploaded_file($_FILES['file3']['tmp_name'],$path)) {
$query="insert into tb_file2(file_name,file_text,data)values('$file_name','$path','$data')";
$result=mysql_query($query);
if($result=true){
echo "上传成功!!";
echo "<meta http-equiv=\"Refresh\" content=\"3;url=index.php?lmbs=文件上传\">";
}else{echo "文件上传失败!!";
echo "<meta http-equiv=\"Refresh\" content=\"3;url=index.php?lmbs=文件上传\">";}
}}}
?>
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