PHP实例：用PHP实现多文件上载系统程序

<?php
//多文件上载系统完整版
include(“../include/common.inc”);
title = “多个文件的上载程序”;
include(“../include/header.inc”);

//定义允许上载文件的数目

define(“UPLOAD_NO”, 10);

echo(“<p align=’center’><font size=’4′ color=’#000080′>欢迎您！<br>一次可以最多上载”.UPLOAD_NO.”个文件<br><HR>n”);
if(REQUEST_METHOD!=”POST”){
echo(“<form enctype=”multipart/form-data” method=post>n”);
echo(“<INPUT TYPE=”hidden” name=”MAX_FILE_SIZE” value=”3000000″>n”);

for(i=1;i<=UPLOAD_NO;i++){
echo(“<input type=file name=infilei> “);

if(i%2==0)
echo(“<br>n”);
}

echo(“<br><br><input type=”checkbox” name=”overload” value=”ON”></font> <font color=’#ff0000′>是否覆盖已经存在的文件？</font>”);
echo(“<br><br><input type=submit value=上载></form>n”);
}
else{
//处理上载
noinput = true;
for(i=1;noinput&&(i<=UPLOAD_NO);i++){
if({“infile”.i}!=”none”) noinput = false;
}
if(noinput){
echo(“<font size=’4′ color=’#000080′>没有选定的文件，返回重试</font>”);
exit();
}
echo(“<p align=’center’><font size=’4′ color=’#000080′>您选中的文件已经成功地上载到服务器的临时目录！</font><br>”);
echo(“<table border=’1′ width=’84%’ height=’52′ bordercolorlight=’#008080′ bordercolordark=’#008080′>
<tr>
<td width=’14%’ bgcolor=’#008000′ height=’21′><font color=’#FFFFFF’>文件号</font></td>
<td width=’52%’ bgcolor=’#008000′ height=’21′><font color=’#FFFFFF’>文件名称</font></td>
<td width=’34%’ bgcolor=’#008000′ height=’21′><font color=’#FFFFFF’>文件大小</font></td>
</tr>”);

for(i=1;i<=UPLOAD_NO;i++){
just={“infile”.i.”_size”};
fp_size[i] = just;

if(overload!=ON){
if(file_exists(AddSlashes(dirname(PATH_TRANSLATED)).”\\upload\\”.{“infile”.i.”_name”}))
echo “<font size=’4′ color=’#ff0000′>您上载的文件<font color=’#000000′>”.{“infile”.i.”_name”}.”</font>已经存在，该文件拷贝失败！</font><br>”;
else{
if({“infile”.i}!=”none”&&copy;({“infile”.i},AddSlashes(dirname(PATH_TRANSLATED)).”/upload/”.{“infile”.i.”_name”})&&unlink({“infile”.i})){
str = {“infile”.i.”_name”};
echo(“<tr>
<td width=’14%’ height=’19′>i</td>
<td width=’52%’ height=’19′>str</td>
<td width=’34%’ height=’19′>fp_size[i]</td>
</tr>”);
}
}
}
else{
if({“infile”.i}!=”none”&&copy;({“infile”.i},AddSlashes(dirname(PATH_TRANSLATED)).”upload”.{“infile”.i.”_name”})&&unlink({“infile”.i})){
str = {“infile”.i.”_name”};
echo(“<tr>
<td width=’14%’ height=’19′>i</td>
<td width=’52%’ height=’19′>str</td>
<td width=’34%’ height=’19′>fp_size[i]</td>
</tr>”);
}
}

}
echo “</table>”;
}

include(“../include/footer.inc”);

?>