ช่วยดูโค๊ดหน่อยครับ อัพโหลดไฟล์ภาพแล้ว นามสกุลของไฟล์ไม่มี

<?
$photo=$_FILES['photo'] ['tmp_name'];
$photo_name=$_FILES['photo'] ['name'];
$photo_size=$_FILES['photo'] ['size'];
$photo_type=$_FILES['photo'] ['type'];

if (!$photo) {
		echo "<a href='upload.php'> <h4>Upload ไม่สำเร็จ</h4></a>";
	} else
	{
	include "connect.php";
	mysql_query("SET NAMES tis620");
	$day_date=date("Y-m-d H:i:s");
	$array_last=explode(".",$photo_name);
	$c=count ($array_last)-1;
	$lastname=strtolower($array_last[$c]);
			if ($lastname=="gif" or $lastname=="jpg" or $lastname=="jpeg") {
					copy($photo, "../images_baby/".$photo_name);
$sql="insert into tb_baby values (' ' , '$photo_name')";
	mysql_db_query($dbname,$sql);
	echo "<h4>Upload เรียบร้อยแล้ว</h4>";
	echo "<a href='upload.php'> <h4>กลับหน้าupload</h4></a><a href='view.php'> <h4>ดูข้อมูลที่ upload</h4></a>";
					
}else {
echo"<a href='upload.php'><h4>เฉพาะรูปภาพนามสกุล *.gif, *.jpg, *.jpeg เท่านั้น</h4></a>";
}
 unlink($photo);
 mysql_close();
}
?>

<?php 
ob_start();
$path="";
include ($path.'include/config.php');
include ($path.'include/permission_denied_member.php');

$sharpEye_datail 	= 	$_REQUEST['sharpEye_datail'];
$sharpEye_site 		= 	$_REQUEST['sharpEye_site'];

$files_name = "file_".date('dmYHis').".".end(explode('.', $_FILES['sharpEye_file']['name']));


copy($_FILES['sharpEye_file']['tmp_name'], "file_sharp/".$files_name); 

	
$sql_int="insert into tb_sharpEye (sharpEye_id, sharpEye_datail, sharpEye_file, sharpEye_site, tb_member_id,  sharpEye_date, sharpEye_time) values (NULL, '".$sharpEye_datail."', '".$files_name."', '".$sharpEye_site."', '".$member_id."',  '".$date_day."', '".$date_time."')";
$query_int = mysql_query($sql_int);
print "
	<script language='javascript'>
		alert('เพิ่มข้อมูลเรียบร้อยแล้ว');	
		window.location.href='display_sharpeye.php';
	</script>
";
?>

if($_FILES['upfile']['error'][$i] !=0){
			$file_data[$i]='';
		}else{
             $type=$_FILES['upfile']['type'];
		    $file=$_FILES['upfile']['tmp_name'];
		    $file_open=fopen($file,"r");
		    $file_data=fread($file_open,filesize($file));
		    $file_data=addslashes($file_data);

		    $sql="insert into picture values('',$id,'$file_data','$type') ";
		    mysql_db_query($db_name,$sql);

		    fclose($file_open);
}

$result =mysql_query("select field_pic from tbl_name") or die (mysql_error());
$type=array('jpg','gif');
while($rs=mysql_fetch_array($result)){
	$update =true;
	foreach($type as $t){
		 $search=strpos(strtolower($rs[field_pic]),".".$t);
		 if($search){
				$update= false; break;
		}
	}
	if($update){
		$new =$rs[field_pic].".JPG";
		mysql_query("update tbl_name set field_pic='$new' where id=$rs[field_id]") or die (mysql_error());
	}
}