Ne-Lexa

$password = 'ChangeMe';
$zipFile = \PhpZip\ZipOutputFile::create();
$zipFile->addFromString('filename.txt', 'Data content');

// установите пароль для нужного алгоритма шифрования
$zipFile->setPassword($password); // для WinZip AES шифрования
// или
$zipFile->setPassword($password, \PhpZip\Model\ZipEntry::ENCRYPTION_METHOD_TRADITIONAL); // для традиционного шифрования

$zipFile->outputAsAttachment('archive.zip');

<element name="base64bytes" 
                minOccurs="0"
                type="xsd:base64Binary"/>

$cacheDuration = 60; // 1 min
$country_id = Country::getDb()->cache(function ($db) {
    return Country::find()->select('id')->asArray()->where(['name' => $matches[1]])->limit(1)->scalar();
}, $cacheDuration);

<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
</properties>

public function getDownloadAllPassport($passports)
{
    $passports = explode(',', $passports);
    $name = uniqid();
    $zipFile = \PhpZip\ZipOutputFile::create();
    foreach ($passports as $passport) {
        $user_name = VisaOrder::findOrFail($passport)->name;
        if (Upload::getFiles('passport', $user_name)) {
            $recursive = true;
            $toZipPath = $name . '/';
            $zipFile->addDir("upload/passport/$user_name", $recursive, $toZipPath);
        }
    }
    $zipFile->outputAsAttachment('passport.zip');
}