Description:
------------
Actually, the version is PHP Version 5.1.0RC2-dev compiled on Oct 1 2005

When given an array containing an integer, pdo->execute() will convert the type to a string.


Reproduce code:
---------------
<?php
/*CREATE TABLE book (
  id int(11) NOT NULL,
  PRIMARY KEY  (id)
); INSERT INTO book VALUES (1);*/

$pdo = new PDO('mysql:dbname=bookstore;host=localhost', 'bookstore', 'password');
$values = array(1);
var_dump($values);
$stmt = $pdo->prepare('SELECT * FROM book WHERE id = ?');
$stmt->execute($values);
var_dump($values);
?>

Expected result:
----------------
array(1) {
  [0]=>
  int(1)
}
array(1) {
  [0]=>
  int(1)
}


Actual result:
--------------
array(1) {
  [0]=>
  int(1)
}
array(1) {
  [0]=>
  string(1) "1"
}