i have a problem with uploading file in IE

[lopy_is_me]

hi all,

i have created a code for uploading picture files and it works perfectly in firefix but in IE 6 or 7 it gives me this error :

 

Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/tmp/phpFuOidl' to '' in /home/site/public_html/upload.php on line 75

error in saving file

 

my code is after clearing it from spaces :

 

 
<?
require("functions.php");
if($_POST["submit"]){

$upload_file;
$msg = "";


if($_FILES["userfile"] == ""){
    $upload_file = false;
    $msg .= "please select a picture file to upload .<br>";
}else{
    $userfile = $_FILES["userfile"];
    $userfile_name = $_FILES["userfile"]["name"];
    $userfile_size = $_FILES["userfile"]["size"];
    $userfile_type = $_FILES["userfile"]["type"];
}

if(!($userfile_type == "image/jpg" or $userfile_type == "image/jpeg" or $userfile_type == "image/png" or $userfile_type == "image/gif")){
    $msg .= "<br>extension allowed only : jpg & jpeg & gif & png";
    $upload_file = false;
}else{
    $upload_file = true;
}

if($userfile_size > 1024000){
    $msg .= "max file size is : 1024 KB";
    $upload_file = false;
}else{
    $upload_file = true;
}

$path = "upload/".next_file_name().".jpg";
// next_file_name() is  function that gets the new name from the BataDase

if($upload_file == false){
    echo $msg;
}else{
    if(move_uploaded_file($userfile["tmp_name"], $path)){// line 75 in the original code where the error pointing
        echo "<br>";
        echo "file uploaded successfuly";
        chmod("{$path}",0777);
    }else{
        echo "error in saving file";
    }
}



?>

 

 

the html form is :

 

<form action="upload.php" method="post" enctype="multipart/form-data" >
<table align="center" border="0" cellspacing="10">
    <tr>
    <td>choose a picture : </td>
    <td><input name="userfile"  type="file" size="50" /></td>
    </tr>
    <tr>
    <td colspan="2" align="center">
    <input name="submit" value="upload" type="submit"/>
    </td>
    </tr>
</table>
</form>

 

please i need help this code is again run perfectly in Firefox but in IE i don't know