Issues with Parameters - php

Question

I've been trying out my PHP skills and it seems when I try to send out the information from my Android app to the PHP, it seems to send just the parameter names(The database shows :Lname as an example.) out to the database. We are using PDO as the way to communicate with the MySQL Database.
Here is the coding as follows:
$query = "INSERT INTO Customer ( Lname, Fname, Address, City, State, ZIP, Phone, myusername, mypassword ) VALUES ( ':Lname', ':Fname', ':Address', ':City', ':State', ':ZIP', ':Phone', ':myusername', ':mypassword')";
//Again, we need to update our tokens with the actual data:
$query_params = array(
':Lname' => $_POST['LName'],
':Fname' => $_POST['FName'],
':Address' => $_POST['Address'],
':City' => $_POST['City'],
':State' => $_POST['State'],
':ZIP' => $_POST['ZIP'],
':Phone' => $_POST['Phone'],
':myusername' => $_POST['username'],
':mypassword' => $_POST['password']
);
//time to run our query, and create the user
try {
$stmt = $db->prepare($query);
$result = $stmt->execute($query_params);
}
catch (PDOException $ex) {
// For testing, you could use a die and message.
//die("Failed to run query: " . $ex->getMessage());
//or just use this use this one:
$response["success"] = 0;
$response["message"] = $ex->getMessage();
die(json_encode($response));
}

Answer 1

You have included literal values in your query string.
$query = "INSERT INTO Customer ( Lname, Fname, Address, City, State, ZIP, Phone, myusername, mypassword )
VALUES ( ':Lname', ':Fname', ':Address', ':City', ':State', ':ZIP', ':Phone', ':myusername', ':mypassword')";
should be
$query = "INSERT INTO Customer ( Lname, Fname, Address, City, State, ZIP, Phone, myusername, mypassword )
VALUES ( :Lname, :Fname, :Address, :City, :State, :ZIP, :Phone, :myusername, :mypassword)";

Answer 2

You need to remove the quotes from your SQL values, as its being interpreted as literal strings. If you remove them, you should be all good :)
$query = "INSERT INTO Customer ( Lname, Fname, Address, City, State, ZIP, Phone, myusername, mypassword ) VALUES ( ':Lname', ':Fname', ':Address', ':City', ':State', ':ZIP', ':Phone', ':myusername', ':mypassword')";