public function IPCheck($domain)
{
// lookup NS records
$dns = \dns_get_record($domain, DNS_A);
//grab domain id
$domain_id = \app\models\Domain::findOne(['domain' => $domain])->domain_id;
// retrieve last stored records
$prev_record = (new \yii\db\Query())->select(['record_value'])->from(['domain_record'])->where(['domain_id' => $domain_id, 'record_type' => 'IP'])->all();
$prev = [];
foreach ($prev_record as $re) {
$prev[] = $re['record_value'];
}
// prepare dns records array
$record = [];
foreach ($dns as $ns) {
$record[] = $ns['ip'];
}
//detect record differences
$diff = array_diff($record, $prev);
if (!empty($diff)) {
$q = new \app\models\MailQueue();
$q->domain_id = $domain_id;
$q->message = '';
$q->save();
}
// clear old record
\app\models\DomainRecord::deleteAll(['domain_id' => $domain_id, 'record_type' => 'IP']);
// Insert new records
foreach ($record as $key => $value) {
$model = new \app\models\DomainRecord();
$model->domain_id = $domain_id;
$model->record_type = 'IP';
$model->record_value = $value;
$model->last_checked = new \yii\db\Expression('now()');
$model->save();
}
}
/**
* @return \yii\db\ActiveQuery
*/
public function getDomainRecords()
{
return $this->hasMany(DomainRecord::className(), ['domain_id' => 'domain_id']);
}