简单的PHP图片上传程序

第一种： php部分 

<?php
if($_FILES['file']['error'] > 0){
   echo '!problem:';
   switch($_FILES['file']['error'])
   {
     case 1: echo '文件大小超过服务器限制';
             break;
     case 2: echo '文件太大！';
             break;
     case 3: echo '文件只加载了一部分！';
             break;
     case 4: echo '文件加载失败！';
             break;
   }


   exit;
}
if($_FILES['file']['size'] > 1000000){
   echo '文件过大！';
   exit;
}
if($_FILES['file']['type']!='image/jpeg' && $_FILES['file']['type']!='image/gif'){
   echo '文件不是JPG或者GIF图片！';
   exit;
}
$today = date("YmdHis");
$filetype = $_FILES['file']['type'];
if($filetype == 'image/jpeg'){
  $type = '.jpg';
}
if($filetype == 'image/gif'){
  $type = '.gif';
}
$upfile = 'upfile/' . $today . $type;
if(is_uploaded_file($_FILES['file']['tmp_name']))
{
   if(!move_uploaded_file($_FILES['file']['tmp_name'], $upfile))
   {
     echo '移动文件失败！';
     exit;
    }
}
else
{
   echo 'problem!';
   exit;
}
echo 'success!';
echo '文件大小：' . $_FILES['file']['size'] . '字节' . '';
echo '文件路径：' . $upfile;
echo '' . '';
$dirr = 'upfile/';
$dir = opendir($dirr);
echo $dirr . '--Listing:'; 
		
		
			while($file = readdir($dir)){ 
		
		
			  echo "$file"; 
		
		
			} 
		
		
			echo '';
while($file = readdir($dir)){
  echo "
$file
}
echo '
closedir($dir);
?>

第二种：

<?php
if(empty($_GET[submit]))
{
?>
<form enctype="multipart/form-data" action="?submit=1" method="post">
Send this file: <input name="filename" type="file">
<input type="submit" value="确定上传">
</form>
<?php
}else{
    $path="uploadfiles/"; //上传路径
//echo $_FILES["filename"]["type"];
if(!file_exists($path))
{
    //检查是否有该文件夹，如果没有就创建，并给予最高权限
    mkdir("$path", 0700);
}//END IF
//允许上传的文件格式
$tp = array("image/gif","image/pjpeg","image/png");
//检查上传文件是否在允许上传的类型
if(!in_array($_FILES["filename"]["type"],$tp))
{
    echo "格式不对";
    exit;
}//END IF
if($_FILES["filename"]["name"])
{
        $file1=$_FILES["filename"]["name"];
        $file2 = $path.time().$file1;
        $flag=1;
}//END IF
if($flag) $result=move_uploaded_file($_FILES["filename"]["tmp_name"],$file2);
//特别注意这里传递给move_uploaded_file的第一个参数为上传到服务器上的临时文件
if($result)
{
    //echo "成功!".$file2;
    echo ""</span><span style="color:#0000CC;">;</span> <br />
		</li>
		<li>
			&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#FF0000;">echo</span> <span style="color:#FF00FF;">"alert(\"上传成功！\");"</span><span style="color:#0000CC;">;</span> <br />
		</li>
		<li>
			&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#FF0000;">echo</span> <span style="color:#FF00FF;">" location='add_aaa.php?pname=$file2'"</span><span style="color:#0000CC;">;</span> <br />
		</li>
		<li>
			&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#FF0000;">echo</span> <span style="color:#FF00FF;">"";
}//END IF
}
?>