PHP 3

//This is the code that sets the query and sends it to my PDO class, which will be below this...
$sql = new dibdibs\pdo;
$sql->connect();

$vals = [
    $_GET['username']
];

if ($sql->numRows("SELECT * FROM `w_a_accounts` WHERE (`name` LIKE %?%)", $vals) > 0){
    $result = $sql->query("SELECT * FROM `w_a_banned-names` WHERE (`name` LIKE %?%)", $vals);
}
else{
    $sql->close();
    return "false";
}

if ($result['contains'] == 1){
    $sql->close();
    return "true";
}

else{
    if ($result['name'] == $_GET['username']){ return "true"; }
    else{ return "false"; }
}

//This is the PDO method that prepares statements and executes them
public function query($query, $valuesUnescaped=[]){
    $statement = $this->con->prepare($query);

    for ($i=0; $i<count($valuesUnescaped); $i++){
        $prepVal = ($valuesUnescaped[$i]);
        $statement->bindParam($i+1, $prepVal);
    }

    $statement->execute();

    $rows = $statement->fetchAll(\PDO::FETCH_ASSOC);
    return $rows;
}

//This function works for other queries, but it is throwing errors when using the LIKE clause.