protected function _validateWarning()
{
$apacheModuleArray = $this->_registry->get('apacheModuleArray');
$testOsArray = ['linux', 'windows nt'];
$testModuleArray = ['mod_deflate', 'mod_headers', 'mod_rewrite'];
$messageArray = [];
if (!in_array($this->_registry->get('phpOs'), $testOsArray)) {
$messageArray[] = $this->_language->get('php_os_unsupported');
}
/* process module */
foreach ($testModuleArray as $value) {
if (!in_array($value, $apacheModuleArray)) {
$messageArray[] = $this->_language->get('apache_module_disabled') . $this->_language->get('colon') . ' ' . $value;
}
}
return $messageArray;
}