If you want to get the real name of the file without the directory name, you can just use the function basename() as the follow:

<?
$zip_dir = "./import/";
$zip = zip_open($zip_dir."import.zip");
if ($zip) {
    while ($zip_entry = zip_read($zip)) {

        $file = basename(zip_entry_name($zip_entry));
        $fp = fopen($zip_dir.basename($file), "w+");
        
        if (zip_entry_open($zip, $zip_entry, "r")) {
            $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
            zip_entry_close($zip_entry);
        }
        
           fwrite($fp, $buf);
        fclose($fp);
        
        echo "The file ".$file." was extracted to dir ".$zip_dir."\n<br>";
    }
    zip_close($zip);
}
?>

Thefore you can extract files without concern with the directory that is set inside the zip source.

Remember to give write permission (w) on that directory.

Hello from Brazil.
Leandro

Big note for filename with accents.

Some Zip softwares encode accents with CP850.

So use iconv for keeping your accents SAFE !