php文件上传的有关问题 -PHP Tutorial-php.cn

php文件上传的有关问题

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Release： 2016-06-13 12:33:28

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php文件上传的问题
我用php写了一个简单的文件上传的页面，显示上传成功了，但
（1）、对应目录下却没有上传的文件【tmp目录下没有文件，也没有生成upload目录和文件】。
（2）、move_uploaded_file的参数顺序，代码中上一行的为错误的，下一行正确，与教材上的相反。

求大神解惑。

upload.html

<br />
<form action = "upload_file.php" method = "post" enctype = "multipart/form-data"><br />
<label for = "file">Filename</label><br />
<input type = "file" name = "file" id = "file"/><br />
<br><br />
<input type = "submit" name = "submit" value = "上传"/><br />
<br />
</form><br />

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upload.php

<br />
<?php<br />
if($_FILES["file"]["error"] > 0)<br />
{<br />
	echo "Error : ".$_FILES["file"]["error"]."<br>";<br />
}<br />
else<br />
{<br />
	echo "Upload: ".$_FILES["file"]["name"]."<br>";<br />
	echo "Type: ".  $_FILES["file"]["type"]."<br>";<br />
	echo "Size: ".($_FILES["file"]["size"]/1024)."KB<br>";<br />
	echo "Stored in: ".$_FILES["file"]["tmp_name"]."<br>";<br />
	<br />
	if(file_exists("upload/".$_FILES["file"]["name"]))<br />
	{<br />
		echo $_FILES["file"]["name"]." already exists.";<br />
	}<br />
	else<br />
	{<br />
		//move_uploaded_file($_FILES["file"]["tmp_name"], "upload/".$_FILES["file"]["name"]);// 报错<br />
		move_uploaded_file("upload/".$_FILES["file"]["name"],$_FILES["file"]["tmp_name"]);<br />
		echo "<br><br><br> Storeed in: "."upload/".$_FILES["file"]["name"];<br />
	}<br />
	<br />
<br />
}<br />
<br />
<br />
<br />
?><br />

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运行结果：
Upload: d.txt
Type: text/plain
Size: 2.439453125KB
Stored in: E:\wamp\tmp\php4A7.tmp

Storeed in: upload/d.txt

php 上传文件没有生成文件和目录