ดู Code PHP ให้หน่อยคับ ผมเขียนผิดตรงไหน ช่วยแก้ไขหน่อยคับ เรื่อง Delete

<?php
$conn = db2_connect("TEST", "db2admin", "password123");
$sql = "SELECT * FROM animals
        ORDER BY id";
	
	echo "<center>";
	echo "<p><a href='show_insert.php'>ADD NEW DATA</a></p>";
	echo "<table border=1>";
	echo "<tr>";
	echo "<td>id</td>";
	echo "<td>breed</td>";
	echo "<td>name</td>";
	echo "<td>weight</td>";
	echo "<td colspan=2>operator</td>";
	echo "</tr>";
if ($conn) {
	
    $stmt = db2_exec($conn, $sql);  //, array('cursor' => DB2_SCROLLABLE));
    while ($row = db2_fetch_array($stmt)) {
		
		echo "<tr>";
		echo "<td>".$row[0]."</td>";
		echo "<td>".$row[1]."</td>";
		echo "<td>".$row[2]."</td>";
		echo "<td>".$row[3]."</td>";
		echo "<td>edit</td>";
		echo "<td><a href='del.php?id=".$row['0']."'>del</td>";
		echo "</tr>";
        //print "$row[0]   $row[1]     $row[2]     $row[3]";
		
    }
	
} 
echo "</table>";
echo "</center>";
?>

<?php
$conn = db2_connect("TEST", "db2admin", "password123");

// Create the test table
//$create = 'CREATE TABLE animals (id INTEGER, breed VARCHAR(32),
//    name CHAR(16), weight DECIMAL(7,2))';
//$result = db2_exec($conn, $create);
//if ($result) {
//    print "Successfully created the table.\n";
//}

// Populate the test table
$animals = array($_POST['data']);

foreach ($animals as $animal) {
    $rc = db2_exec($conn, "DELETE FROM animals WHERE id = {$animals[0]}");
    if ($rc) {
        echo "<a href='index.php'>GO HOME</a>";
    }
}
?>