อยากสร้างตารางงับ คืออยาก echo ตารางคับ เเต่ทำไม่ได้ นี้คือ code คับ

<?php

include "connect.php";
include "category.php";

$perRow = 4;

echo '<table width=800 cellpadding=5 cellspacing=2 border=1>';

for ( $i = 0; $i < count( $cate ); $i++) 
{
	$sql	=	"select id from tb_url where category='$i' ";
	$result	=	mysql_db_query($dbname,$sql);
	$num	=	mysql_num_rows($result);
	
	if ( ( $i % $perRow ) == 0 ) echo '<tr>';
	echo "<td><b><font size=2><a href='list.php?cate_id=$i'>$cate[$i]</a></b> [$num]<br /></td>";
	if ( ( ( $i + 1 ) % $perRow ) == 0 ) echo '</tr>';
}

echo '</table>';

?>

<?php

include "connect.php";
include "category.php";

$perRow = 4;

echo '<table width=800 cellpadding=5 cellspacing=2 border=1>';

for ( $i = 0; $i < count( $cate ); $i++) 
{
	$sql	=	"select id from tb_url where category='$i' ";
	$result	=	mysql_db_query($dbname,$sql);
	$num	=	mysql_num_rows($result);
	
	if ( ( $i % $perRow ) == 0 ) echo '<tr>';
	echo "<td><b><font size=2><a href='list.php?cate_id=$i'>$cate[$i]</a></b> [$num]<br /></td>";
	if ( ( ( $i + 1 ) % $perRow ) == 0 ) echo '</tr>';
}

if ( ( $i + 1 ) % $perRow  != 0  )
{
	while ( $i % $perRow  != 0 )
	{
		echo "<td>&nbsp;</td>";
		$i++;
	}
	echo '</tr>';
}

echo '</table>';

?>