ขอเอามาถามใหม่ครับผมเกี่ยวกับการนับวัน โดนตัดเสาร์อาทิตย์ออก

function working_days($format, $start, $range, $skip = NULL){
	$output = array();
	$j=0;
	for($i=0;$i<$range;$i++){
		$j++;
		if(is_array($skip) and in_array(date("D",strtotime("+" . $j . " day", strtotime($start))), $skip)){
			$i--;
			continue;
		}
	}
	return date($format, strtotime("+" . $j . " day", strtotime($start)));
}
$start_date = " 2011-07-15";
$date_range = 7;
echo "Start Date : " . $start_date . ", Range : " . $date_range . ",Next Date : " . working_days("Y-m-d", $start_date, $date_range, array("Sat", "Sun"));

function working_days($format, $start, $range, $skip = array("Sat", "Sun")){
	$output = array();
	$j=0;
	for($i=0;$i<$range;$i++){
		$j++;
		if(is_array($skip) and in_array(date("D",strtotime("+" . $j . " day", strtotime($start))), $skip)){
			$i--;
			continue;
		}
	}
	return date($format, strtotime("+" . $j . " day", strtotime($start)));
}
$start_date = " 2011-07-15";
$date_range = 7;
echo "Start Date : " . $start_date . ", Range : " . $date_range . ",Next Date : " . working_days("Y-m-d", $start_date, $date_range);

<?php
 
	$strStartDate = "2011-08-01";
	$strEndDate = "2011-08-15";
	
	$intWorkDay = 0;
	$intHoliday = 0;
	$intTotalDay = ((strtotime($strEndDate) - strtotime($strStartDate))/  ( 60 * 60 * 24 )) + 1; 

	while (strtotime($strStartDate) <= strtotime($strEndDate)) {
		
		$DayOfWeek = date("w", strtotime($strStartDate));
		if($DayOfWeek == 0 or $DayOfWeek ==6)  // 0 = Sunday, 6 = Saturday;
		{
			$intHoliday++;
			echo "$strStartDate = <font color=red>Holiday</font><br>";
		}
		else
		{
			$intWorkDay++;
			echo "$strStartDate = <b>Work Day</b><br>";
		}
		//$DayOfWeek = date("l", strtotime($strStartDate)); // return Sunday, Monday,Tuesday....

		$strStartDate = date ("Y-m-d", strtotime("+1 day", strtotime($strStartDate)));
	}

	echo "<hr>";
	echo "<br>Total Day = $intTotalDay";
	echo "<br>Work Day = $intWorkDay";
	echo "<br>Holiday = $intHoliday";
?>