PHP實現簡單的文件上傳

<?php
/*
* Created on 2012-2-10
*
* To change the template for this generated file go to
* Window - Preferences - PHPeclipse - PHP - Code Templates
*/
if (is_uploaded_file($_FILES["upfile"]["tmp_name"])){//獲取上傳的文件信息

$upfile=$_FILES["upfile"];
$name = $upfile["name"];
$type = $upfile["type"];
$size = $upfile["size"];
$tmp_name = $upfile["tmp_name"];
switch($type)//判斷文件的類型
{
case 'image/pjpeg':$ok=1;
break;
case 'image/gif':$ok=1;
break;
case 'image/pig':$ok=1;
break;
}
if($ok)//判斷上傳的文件類型是夠正確
move_uploaded_file($tmp_name,'up/'.$name);
echo "上傳成功";
}
else {
echo "您上傳的文件不是圖片文件";
}
?>
<form action="" enctype="multipart/form-data" method="post" name="upform">
  上傳文件:
  <input name="upfile" type="file">
  <input type="submit" value="上傳"><br>
</form>

其他的判斷文件大小之類的可以自己添加