PressBooks\Modules\Export\Xhtml\Xhtml11::hasDependencies PHP Метод

    static function hasDependencies()
    {
        if (true == \Pressbooks\Utility\check_xmllint_install()) {
            return true;
        }
        return false;
    }

} else {
    $prince = true;
}
if (false == \Pressbooks\Modules\Export\Epub\Epub201::hasDependencies()) {
    $epub = false;
    $dependency_errors['epub'] = 'EPUB';
} else {
    $epub = true;
}
if (false == \Pressbooks\Modules\Export\Mobi\Kindlegen::hasDependencies()) {
    $mobi = false;
    $dependency_errors['mobi'] = 'MOBI';
} else {
    $mobi = true;
}
if (false == \Pressbooks\Modules\Export\Xhtml\Xhtml11::hasDependencies()) {
    $xhtml = false;
    $dependency_errors['xhtml'] = 'XHTML';
} else {
    $xhtml = true;
}
if (false == \Pressbooks\Modules\Export\InDesign\Icml::hasDependencies()) {
    $icml = false;
    $dependency_errors['icml'] = 'ICML';
} else {
    $icml = true;
}
if (false == \Pressbooks\Modules\Export\Odt\Odt::hasDependencies()) {
    $odt = false;
    $dependency_errors['odt'] = 'OpenDocument';
} else {