大家来看下这两段PHP代码有没有区别

第一段：
$query = "INSERT INTO products (products_quantity) VALUES ('10000')";
if($result33 = mysql_db_query($DataBase, $query))
{
$new_id=mysql_insert_id();
echo" product insert ok $new_id <br>";
}
第二段：
$query = "INSERT INTO products (products_quantity) VALUES ('10000')";
$result33 = mysql_db_query($DataBase, $query);
$new_id=mysql_insert_id();
if($result33)
{
echo" product insert ok $new_id <br>";
}