PDO "Invalid parameter number: parameter was not defined" yet it is - php

Question

Basically what I'm doing is a users class, which executes a MySQL query in the constructor to retrieve all the users data and store it, like so:
public function __construct($data, $type = 'id')
{
$this->details = Beam::$db->row("SELECT * FROM users WHERE $type = :param", ['param' => $data]);
if(!empty($this->details)) $this->exists = true;
}
This is row() method:
public function row($query, $params = null, $fetchmode = PDO::FETCH_ASSOC)
{
$this->init($query, $params);
return $this->statementQuery->fetch($fetchmode);
}
And init(), where the parameters are bound and the query is executed:
public function init($query, $parameters = '')
{
try {
$this->statementQuery = $this->pdo->prepare($query);
if(!empty($parameters))
{
foreach($parameters as $key => $value)
{
$this->bind($key, $value);
}
}
if(!empty($this->parameters))
{
foreach($this->parameters as $key => &$value)
{
$this->statementQuery->bindParam($key, $value);
}
}
$this->success = $this->statementQuery->execute();
}
catch(PDOException $e)
{
throw new SystemException($e->getMessage() . ' in query: ' . $query, (int) $e->getCode());
}
$this->parameters = array();
}
It should work, I've tested everything multiple times, and debugged using dies() everywhere, but it seems as if I instantiate the class more than one time, the error occurs. It's called multiple times in all my code. Is there something I'm missing?
The error:
SQLSTATE[HY093]: Invalid parameter number: parameter was not defined in query: SELECT * FROM users WHERE id = :param
I've also tried debugging printing all the parameters set in PDO by ::debugDumpParams(), and all the parameters are okay, I even var_dump the $this->statementQuery->fetch($fetchmode) from the row() method and it returns everything as it should be...
PS: I bind the array ['param' => $data] afterwards, using this method:
public function bind($param, $value)
{
$this->parameters[':' . $param] = $value;
}
Some examples of where I call the class from:
Login method. Called when the user does login. It fails.
public static function login($user, $password)
{
$user = new User($user, Beam::$con->auth['type']);
if($user->exists == true)
{
$user_ip = $_SERVER['REMOTE_ADDR'];
$user_browser = $_SERVER['HTTP_USER_AGENT'];
$user_id = $user->details["id"];
$username = $user->details["username"];
$user_mail = $user->details["mail"];
$user_password = $user->details["password"];
if(self::verify($password, $user_password))
{
$_SESSION['user_id'] = $user_id;
$_SESSION['username'] = $username;
$_SESSION['user_mail'] = $user_mail;
$_SESSION['user_checksum'] = hash('sha512', $user_password . $user_ip . $user_browser);
Beam::$db->bind("l", time());
Beam::$db->bind("u", $user_id);
Beam::$db->query("UPDATE user_info SET login_timestamp = :l WHERE user_id = :u");
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
This one checks if the user is logged in. It's called almost in every file for authenticated users only.
public static function status()
{
if(isset($_SESSION["user_id"], $_SESSION["username"], $_SESSION["user_checksum"]))
{
$user = new User($_SESSION["user_id"], "id");
if($user->exists)
{
$user_id = $_SESSION['user_id'];
$user_checksum = $_SESSION['user_checksum'];
$username = $_SESSION['username'];
$user_ip = $_SERVER['REMOTE_ADDR'];
$user_browser = $_SERVER['HTTP_USER_AGENT'];
$user_password = $user->details["password"];
switch($user_checksum)
{
default:
$checksum_verify = hash('sha512', $user_password . $user_ip . $user_browser);
break;
case "facebook":
$checksum_verify = "facebook";
break;
}
if($checksum_verify == $user_checksum)
{
return true;
}
}
else
{
return false;
}
}
else
{
return false;
}
}

Answer 1

You need to use the same name for the parameter that you used in the query. In this case you used ":param" so that's what you need to use when you pass in the array of parameters.
change
['param' => $data]
to
[':param' => $data]
and it should work.