Simple PDO wrapper

My web application currently has do execute simple queries: simple CRUD operations, counting,...

A few months ago, someone recommended me here to write a simple PDO wrapper for this (to avoid writing try/catch, prepare(), execute(), etc. each time a query should be executed). This example method was shown (I've made some changes so I could use it in my own project):

public function execute() {
    $args  = func_get_args();
    $query = array_shift($args);
    $result = false;

    try {
      $res = $this->pdo->prepare($query);
      $result = $res->execute($args);
    } catch (PDOException $e) { echo $e->getMessage(); }

    return $result;
  }

As I need to perform more operations (executing queries, retrieving 1 record, retrieving multiple records, counting results) I created a method for all of these:

  public function getMultipleRecords() {
    $args  = func_get_args();
    $query = array_shift($args);
    $records = array();

    try {
      $res = $this->pdo->prepare($query);
      $res->execute($args);
      $records = $res->fetchAll();
    } catch (PDOException $e) { echo $e->getMessage(); }

    return $records;
  }

  public function getSingleRecord() {
    $args  = func_get_args();
    $query = array_shift($args);
    $record = array();

    try {
      $res = $this->pdo->prepare($query);
      $res->execute($args);
      $record = $res->fetch();
    } catch (PDOException $e) { echo $e->getMessage(); }

    return $record;
  }

  public function execute() {
    $args  = func_get_args();
    $query = array_shift($args);
    $result = false;

    try {
      $res = $this->pdo->prepare($query);
      $result = $res->execute($args);
    } catch (PDOException $e) { echo $e->getMessage(); }

    return $result;
  }

  public function count() {
    $args  = func_get_args();
    $query = array_shift($args);
    $result = -1;

    try {
      $res = $this->pdo->prepare($query);
      $res->execute($args);
      $result = $res->fetchColumn();
    } catch(PDOException $e) { echo $e->getMessage(); }

    return $result;
  }

As you see, most of the code is the same. Only 2 lines of code are different for each method: the initialisation of $result (I always want to return a value, even if the query fails) and the fetching. Instead of using 4 methods, I could write just one of them and pass an extra parameter with the type of action. That way, I could use a bunch of if/else statements of a switch statement. However, I think the code can get messy. Is this a good way for solving this problem? If not, what would be a good solution to it?

The second problem I have (which is why I'm working on this class right now) is that I want to use prepared statements with the LIMIT SQL statement. However, it is not possible to do this:

$res = $pdo->prepare("SELECT * FROM table LIMIT ?");
$res->execute(array($int));

The variabele will be quoted for some reason (and so the query will fail), as explained here: https://bugs.php.net/bug.php?id=40740

The solution seems to use bindValue() and use the int datatype as a parameter: http://www.php.net/manual/de/pdostatement.bindvalue.php

I could rewrite the method(s) to support this, but I would also need to use an extra parameter. I can't just use $db->execute($sql, $variable1, $variable2); anymore as I need to know the data type.

What's the best way to solve this?

Thanks