php Having trouble exporting without path zip file

I have this code which outputs the file. The only issue is it keeps the entire directory with it. How would I remove all the directory so it would run correctly?
I have tried a few things but they are commented out.

include 'config.php';
                     
// Fetch Record from Database
$base = "/var/files/files/files/exportsomething.csv";
$filename = $_FILES['file']['name'];

if (@is_uploaded_file($_FILES["file"]["tmp_name"])) {
copy($_FILES["file"]["tmp_name"], "$base" . "$filename");
}                                       
$filename = $base . $filename;

$output = "";
$table = "kick"; // Enter Your Table Name
$sql = mysql_query("select * from $table");
$columns_total = mysql_num_fields($sql);

// Get The Field Name

for ($i = 0; $i < $columns_total - 1; $i++) {
    $heading = mysql_field_name($sql, $i);
    if($i!=0)
        $output .= "|";       
    $output .= $heading;
}
$output .="\n";

// Get Records from the table

while ($row = mysql_fetch_array($sql)) {
    for ($i = 0; $i < $columns_total - 1; $i++) {
        if($i!=0)
            $output .= "|";       
        $output .= $row["$i"];
    }
    $output .="\n";
}

// save the file

$file = fopen($filename,"w");
fwrite($file, $output) or die("can't save the file");
fclose($file);


//archive it

$zip = new ZipArchive();
$zip->open($filename.".zip", ZipArchive::OVERWRITE);
//$zip->addFile("${path}/".$filename.".csv", $filename.".csv");
//$new_filename = substr($file,strrpos($file,'/') + 1);
//$zip->addFile($file,$new_filename);
//addFolderToZip("$filename/", $zip);

$zip->addFile($filename);
$zip->close();
echo "zip file created";

PHP:

 

ok I figured out what I did wrong.. I just needed to change $file to $filename..

//$new_filename = substr($file,strrpos($file,'/') + 1);
//$zip->addFile($file,$new_filename);