mysql query to get a related column - php

Question

hoping you guys can help me with this, im still new to sql and figuring it out.
i have built a page using PHP that $_GET the unique id to display a record.
on this page, i would like to display all the records that share a specific column.
for example
php gets the unique id which is 44.
SELECT * FROM products WHERE id = 44 -- (the problem)
get the data (ie racing) from id = 44 column cat_02
now display all of the product titles that are in cat_02 which are 'racing'
i hope that made sense.

Answer 1

Create a connection to your database
Create a prepared statement with you query
Execute the statement providing you parameter
Loop through the results of the execution
Example:
// creates a new PDO connection, you'll need to modify this to work with whatever DB you are using
$dbh = new PDO('mysql:host='.$host_name.';dbname='.$database, $username, $password);
$stmt = $dbh->prepare("SELECT cat_02 FROM products WHERE id = ?"); // selects just the cat_02 column that has the product titles
if ($stmt->execute(array($_GET['id']))) { // uses the id variable from $_GET
while ($row = $stmt->fetch()) { // loops through all of the rows returned from the query
print_r($row); // do what ever you wanted to with the row of results
}
}