PHP file upload max file size problem

Hi ive made a PHP file upload page and im now trying to a put a max file size limit to it

im trying to use:

[code=php]
$filesize = $HTTP_POST_FILES[‘userfile’][‘size’];
$maxfilesize = ‘25000000’;
if ($filesize > $maxfilesize){
header (“Refresh: 3; URL=../fileinfo/selectfile.php”);
?>
<h2 align=”center”>File Size is larger than the limit</h2>

<?php
exit();
}
else if ($filesize < $maxfilesize){

[/code]

but this doesnt seem to do anything as i get the following errors

Warning: fread(): supplied argument is not a valid stream resource in setupuploadfile.php on line 54

Warning: fclose(): supplied argument is not a valid stream resource in setupuploadfile.php on line 56

from this code which is in the following else if statement

[code=php]
$fp = fopen($tmpName, ‘r’);
$filedata = fread($fp, $filesize);
$filedata = addslashes($filedata);
fclose($fp);
[/code]

any ideas?

thanks for any help

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