สอบถามผู้รู้ครับ รู้สึกว่าจะไม่แสดงผลวันที่ แก้ยังไงครับ

//แปลงเวลาเป็นภาษาไทย
function ThaiTimeConvert($timestamp="",$full="",$showtime=""){
	global $SHORT_MONTH, $FULL_MONTH, $DAY_SHORT_TEXT, $DAY_FULL_TEXT;
	$day = date("l",$timestamp);
	$month = date("n",$timestamp);
	$year = date("Y",$timestamp);
	$time = date("H:i:s",$timestamp);
	$times = date("H:i",$timestamp);
	if($full){
		$ThaiText = $DAY_FULL_TEXT[$day]." "._TIME_AT." ".date("j",$timestamp)." "._MONTH_AT." ".$FULL_MONTH[$month]." "._YEAR_AT."".($year+543) ;
	}else{
		$ThaiText = date("j",$timestamp)."/".$SHORT_MONTH[$month]."/".($year+543);
	}

	if($showtime == "1"){
		return $ThaiText." "._TIMES_AT." ".$time;
	}else if($showtime == "2"){
		$ThaiText = date("j",$timestamp)." ".$SHORT_MONTH[$month]." ".($year+543);
		return $ThaiText." : ".$times;
	}else{
		return $ThaiText;
	}
}

//เปลี่ยนจาก 11/2/2554  เป็น 11 ก.พ. 2554
function formatDateThai($date){
$list= array("",""._Month_1."",""._Month_2."",""._Month_3."",""._Month_4."",""._Month_5."",""._Month_6."",""._Month_7."",""._Month_8."",""._Month_9."",""._Month_10."",""._Month_11."",""._Month_12."");
list($d,$m,$y) =preg_split("/\//",$date);
return "$d {$list[$m]} $y";
}