ทำไม ถึงลบ ชื่อในฐานข้อมูลได้แต่ ไฟล์ไม่หายอ่ะครับ

<?php
		include 'inc/function.php';
		$dblink = connect_db();
		$str = "DELETE from img where id ='$id'";
		$re = mysqli_query($dblink, $str);
		$stra = "SELECT* from img where id ='$id'";
		$rea = mysqli_query($dblink, $stra);
		$rows = mysqli_fetch_array($rea);
		//echo "$str";
		@unlink("image/".$rows['name']);

  ?>

<?
		include 'inc/function.php';
		$dblink = connect_db();
		$str = "DELETE from img where id ='$id'";
		$re = mysqli_query($dblink, $str);
		$stra = "SELECT* from img where id ='$id'";
		$rea = mysqli_query($dblink, $stra);
		$rows = mysqli_fetch_array($rea);
		//echo "$rows['name']";
		@unlink("image/".$rows['name']);

  ?>