testfrom - 2017-02-23 00:00:00
testto - 2017-02-24 23:59:59

$dt = date("Y-m-d");
    $srt = date("Y-m-d", strtotime($r['testfrom']));
    $end = date("Y-m-d", strtotime($r['testto']));
 if($srt >= $dt || $end <= $dt){

    }

$dt = date("Y-m-d");
    $srt = date("Y-m-d", strtotime("2017-02-23 00:00:00"));
    $end = date("Y-m-d", strtotime("2017-02-24 23:59:59"));
 if($srt == $dt && $end >= $dt){
  echo "yes";
    }