Upload Problem

programming
1

I want to be able to upload at least a maximum of 50MB here is my PHP code:

    <?php
    $MAX_SIZE = 90000000;                      
    $FILE_EXTS  = array('.jpg','.gif','.png','.psd','.eps','.ai','.exe','.zip','.tar','.sit','.txt','.doc','.pdf','.rtf','.ste','.stc'); 
    $DELETABLE  = true;                               
    $site_name = $_SERVER['HTTP_HOST'];
    $url_dir = "http://".$_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']);
    $url_this =  "http://".$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];
    $upload_dir = "1/";
    $upload_url = $url_dir."/1/";
    $message ="";
    if (!is_dir("1/")) {
    if (!mkdir($upload_dir))
    die ("upload_files directory doesn't exist and creation failed");
    if (!chmod($upload_dir,0777))
    die ("change permission to 777 failed.");
    }
    if ($_REQUEST[del] && $DELETABLE)  {
    $resource = fopen("../logs/upload.txt","a");
    fwrite($resource,gmdate("m.d.Y h:i A \E\S\T", time() -14500)." $_SERVER[REMOTE_ADDR] - Delete "."$_REQUEST[del]

“);
fclose($resource);
if (strpos($_REQUEST[del],”/.")>0);
else if (strpos($_REQUEST[del],$upload_dir) === true);
else if (substr($_REQUEST[del],0,2)==$upload_dir) {
unlink($_REQUEST[del]);
print “<script>window.location.href=’$url_this?message=Deleted successfully.’</script>”;
}
}
else if ($_FILES[‘UserFile’]) {
$resource = fopen("…/logs/upload.txt",“a”);
fwrite($resource,gmdate(“m.d.Y h:i A \E\S\T”, time() -14500)." $_SERVER[REMOTE_ADDR] - Upload " .$_FILES[‘UserFile’][‘name’]."
“);
fclose($resource);
$file_type = $_FILES[‘UserFile’][‘type’];
$file_name = $_FILES[‘UserFile’][‘name’];
$file_ext = strtolower(substr($file_name,strrpos($file_name,”.")));
if ( $_FILES[‘UserFile’][‘size’] > $MAX_SIZE)
$message = “The file size is over 50MB.”;
else if (!in_array($file_ext, $FILE_EXTS))
$message = “Sorry, this file is not allowed to be uploaded.”;
else
$message = do_upload($upload_dir, $upload_url);
print “<script>window.location.href=’$url_this?message=$message’</script>”;
}
else if (!$_FILES[‘UserFile’]);
else
$message = “Invalid file specified.”;
$handle=opendir($upload_dir);
$filelist = “”;
while ($file = readdir($handle)) {
if(!is_dir($file) && !is_link($file)) {
$filelist .= “<li><a href=’$upload_dir$file’>”.$file."";
if ($DELETABLE)
$filelist .= " - <a href=’?del=$upload_dir".urlencode($file)."’ title=‘Delete’>x</li>";
}
}
function do_upload($upload_dir, $upload_url) {
$temp_name = $_FILES[‘UserFile’][‘tmp_name’];
$file_name = $_FILES[‘UserFile’][‘name’];
$file_name = str_replace("\","",$file_name);
$file_name = str_replace("’","",$file_name);
$file_path = $upload_dir.$file_name;
if ( $file_name =="") {
$message = “Invalid file name specified.”;
return $message;
}
$result = move_uploaded_file($temp_name, $file_path);
if (!chmod($file_path,0777))
$message = “Change permission to 777 failed.”;
else
$message = ($result)?“Uploaded successfully.” :“Something is wrong with uploading a file.”;
return $message;
}
?>

This is my PHP.INI file:

register_globals = Off
safe_mode = On
max_execution_time = 1600
memory_limit = 100M
post_max_size = 100M
upload_max_filesize = 100M

Any clues about why it will upload less than 2MB but nothing more?