Description:
------------
The main 'problem' I have is undocument change of behavior in pdo's bindParam() when binding a string as integer.
In php 7.0 I think it's silently binded as string because the queries return the expected result. In 7.2.25 and 7.3 (I didn't test 7.1) no warnings or exceptions are raised, but all rows are returned.

I want this change of behavior be documented (please correct me if I'm wrong, I can't find it here as bug or in the upgrade/release notes).
And a nice to have would be a warning in the logfiles.

Test script:
---------------
$driver_options = array( PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES UTF8 COLLATE UTF8_unicode_ci', PDO::MYSQL_ATTR_LOCAL_INFILE => 1);
	$oDb = new LoggedPDO('mysqli:host=localhost;dbname=DATABASENAME', 'USERNAME', 'PASSWORD',$driver_options);
$oDb->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$oDb->exec('
	CREATE TABLE `test_parambinding` (
	  `id` int(10) NOT NULL,
	  `name` varchar(10) NOT NULL
	) ENGINE=InnoDB DEFAULT CHARSET=latin1;

	INSERT INTO `test_parambinding` (`id`, `name`) VALUES
	(1, "one"),
	(2, "two");

	ALTER TABLE `test_parambinding`
	  ADD PRIMARY KEY (`id`);

	ALTER TABLE `test_parambinding`
	  MODIFY `id` int(10) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=3;
	COMMIT;
');
	
$oStmt = $oDb->prepare('SELECT * FROM `test_parambinding` WHERE `name` = :name');
	$name = 'one';
	
echo 'Bind string $name as PDO::PARAM_INT';
echo PHP_EOL;
$oStmt->bindParam(':name', $name, PDO::PARAM_INT);
$oStmt->execute();
$aResults = $oStmt->fetchAll(PDO::FETCH_ASSOC);
var_dump($aResults);

Expected result:
----------------
Not really 'expecting' this, but this is how it worked in php <= 7.0.
The query fetches one (the expected) row:
array(1) {
  [0]=>
  array(2) {
    ["id"]=>
    string(1) "1"
    ["name"]=>
    string(3) "one"
  }
}

Maybe it would be best if PDO generates a warning or throws an exception (string bound as integer?).

Actual result:
--------------
PHP 7.2 and 7.3 fetches all rows (in this example case, both rows).