Add SQL data to URL with PHP - php

Question

I have some basic code which selects data from a database and echo's it into a HTML table and also add's a link to the echo'd out data. This all works fine. What I want to do is add another piece of data from my database (product_id) to the URL. Here is the code:
<?php
$con=mysqli_connect("localhost","root","","db_test");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($con,"SELECT * FROM tbl_products");
echo "<table border='1'>
<tr>
<th>Products:</th>
</tr>";
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td><a href='product.php?id='>" . $row['product_name'] . "</a></td>";
echo "</tr>";
}
echo "</table>";
mysqli_close($con);
?>
I want to add product_id from my database at the end of
<a href='product.php?id='
so the product_id becomes the ID of the page. How would I do this? I have experimented but it has resulted in numerous errors. I am sure this is a simple syntax thing but it' s bugging me.

Answer 1

You are closing the tag A before placing your data into href.
I think it should work:
echo "<table border='1'>
<tr>
<th>Products:</th>
</tr>";
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['product_name'] . "</td>";
echo "</tr>";
}
echo "</table>";
Answer back if it doesn't work.

Answer 2

The problem is you should put the '> after " . $row['product_name'] . " so that the line would read:
echo "<td><a href='product.php?id=" . $row['product_name'] . "'>" . $row['product_name'] . "</a></td>";