public function checkSettings($settings)
{
assert('is_array($settings)');
if (!is_array($settings) || empty($settings)) {
$errors = array('invalid_syntax');
} else {
$errors = array();
if (!$this->_spValidationOnly) {
$idpErrors = $this->checkIdPSettings($settings);
$errors = array_merge($idpErrors, $errors);
}
$spErrors = $this->checkSPSettings($settings);
$errors = array_merge($spErrors, $errors);
$compressErrors = $this->checkCompressionSettings($settings);
$errors = array_merge($compressErrors, $errors);
}
return $errors;
}