src/Zend/Filter/Compress/Tar.php
public function setArchive($archive)
    {
        $archive = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $archive);
        $this->_options['archive'] = (string) $archive;

        return $this;
    }
public function setArchive($archive)
    {
        $archive = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $archive);
        $this->_options['archive'] = (string) $archive;

        return $this;
    }
Sets the archive to use for de-/compression

@param string $archive Archive to use
@return Zend_Filter_Compress_Tar