Сергей Протько

if (!preg_match("/^[a-zA-Z0-9_]+$/", $username)) die("Bad login");
        if (
        $type != 'voice' and $type != 'balance1' and $type != 'balance2' and $type != 'absvoice' and $type != 'passhash' and
        $type != 'paytime' and $type != 'white1' and $type != 'exp1' and $type != 'white2' and $type != 'voice2' and
        $type != 'exp2') die("Wrong type");
        if ($action != 'set' and $action != 'get' and $action != 'add') die("Wrong action");
        if ($action == 'set' and !(preg_match("/^[0-9-.]+$/", $value)) and $type != 'passhash') die("Wrong value");
        if (($action == 'set' or $action == 'add') and ($type == 'paytime' OR $type == 'absvoice')) die("paytime/absvoice read only");
        if (($action == 'add') and ($type == 'passhash' or $type == 'white1' or $type == 'white2')) die("add not available for this");

if (!preg_match("/^[a-zA-Z0-9_]+$/", $username)) die("Bad login");

$availableTypes = ['voice', 'balance1', 'balance2', 'absvoice', 'passhash', 'paytime', 'white1', 'exp1', 'white2', 'voice2', 'exp2'];
if (!in_array($type, $availableTypes)) {
    die("Wrong type");
}

if (!in_array($action, ['set', 'get', 'add'])) {
    die("Wrong action");
}
if ($action == 'set' and !(preg_match("/^[0-9-.]+$/", $value)) and $type != 'passhash') {
    die("Wrong value");
}
if (($action == 'set' or $action == 'add') and in_array($type, ['paytime', 'absvoice'])) {
    die("paytime/absvoice read only");
}
if (($action == 'add') and (in_array($type, ['passhash', 'white1', 'white2']))) {
    die("add not available for this");
}

$constraints = [
    'unsupportedTypes' => !in_array($type, $availableTypes),
    'unsupportedAction' => !in_array($action, ['set', 'get', 'add']),
    'expectedNumericValue' => $action == 'set' && is_numeric($value),
    'readOnlyType' => 'get' !== $action && in_array($type, ['paytime', 'absvoice']),
    'disallowedTypes' => 'add' === $action && in_array($type, ['passhash', 'white1', 'white2']),
];

$constraintsMessages = [
    'unsupportedTypes' => 'Type "<type>" is not supported',
    'unsupportedAction' => 'Action "<action>" is not supported',
    'expectedNumericValue' => 'Wrong value, expected numeric',
    'readOnlyType' => '<type> is read only',
    'disallowedTypes' => 'Type "<type>" is not supported for action "<action>"'
];

$errors = array_keys(array_filter($constraints));
if (!empty($errors)) {

    die(str_replace(
        ['<type>', '<action>'],
        [$type, $action],
        $constraintsMessages[reset($errors)]
    ));
}

нет возможности вернуть всю цепочку примисов

protected function _methodName()
{
    $connection = new \Abraham\TwitterOAuth\TwitterOAuth\TwitterOAuth(
         CONSUMER_KEY, CONSUMER_SECRET, OAUTH_TOKEN, OAUTH_SECRET
     );
}