<?php
//$hours=array("1","2","3","4","5","6","7","8","9");
$holiday=array('sunday','saturday');
$start='2016-01-26 04:30:0';
$end='2016-01-31 04:30:00';
$b=date_create($a);
$c=date_format($b,'m-d-y H:i:s');
$d=date('H',$c);
//echo date($c+'1day');
//echo $e=($d+'1hour');
$diff=date_diff($end,$start);
echo $diff->format("%R%a days");
?>
preferences:
40.09 ms | 402 KiB | 5 Q