Object of class .. could not be converted to string

Question

I made my first class and I\'m having trouble converting the objects back into strings.

class Cryption
{
    var $data;
    var $salt;

function __construct($dat         


        

Answer 1

Look at this lines:

$password->sha512();

$result = mysql_query("SELECT * FROM `administrators` WHERE username='$username' and password='$password'");

$password is an object. It should be:

$pw = $password->sha512();

$result = mysql_query("SELECT * FROM `administrators` WHERE username='$username' and password='$pw'");