Есть ли недочеты в коде?

static function dateConvert($date){

 

	$current_date=new DateTime();
  $cur_date= getdate($current_date->getTimestamp());
$prev_date= getdate($date);
$difday=$cur_date['yday']-$prev_date['yday'];
$difyear=$cur_date['year']-$prev_date['year'];
 if($cur_date['year']==$prev_date['year'] and $cur_date['mon']==$prev_date['mon'] and $cur_date['yday']==$prev_date['yday']){
		  	return 'Сегодня';
 }elseif ($cur_date['year']==$prev_date['year'] and $cur_date['mon']==$prev_date['mon'] and $difday==1) {
		  	return 'Вчера';
}elseif ($cur_date['year']==$prev_date['year'] and   $difday==1) {
		  	return 'Вчера месяц был другой';
 }elseif (  $difyear==1 and $cur_date['mon']==1 and $prev_date['yday']==364 or $prev_date['yday']==365  ) {
		  	return 'Вчера год был другой';
		  }
return ;

	}