Although there are already some PHP database abstraction classes available, the advantage of PDO

Now this is definitely implying in covert language that PDO is an abstraction layer. Just wanted to make that clear.

Then go on and check http://www.php.net/pdo where PDO is under the category ‘abstraction layers’.

Best Regards
(nice step david)

ggfhg

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Although there are already some PHP database abstraction classes available, the advantage of PDO is that it will be available in any PHP installation (so long as it is enabled) at runtime, without any need for recompiling.

PDO is -not- a database abstraction layer. The need for something like ADOdb or PEAR::DB is still present to provide an easier method of switching from one database to another and writing portable sql. PDO does -not- provide that level of functionality to programmers. PDO is merely a common interface to all the databases.

ADOdb has also included a PDO based driver since the very begging of PDO’s existance, infact that was a recent post on John Lim’s blog about PDO. http://phplens.com/phpeverywhere/?q=node/view/209

$dns=’mysql://user:password@127.0.0.1/myDatabase’;
try
{
$dbo = new PDO($dsn);
}
catch(PDOException $e)
{
echo $e;
}

I ask this so I can start extending my dns-string parser-functions again for yet an other format. They should start standardising these

php.net: In general, a DSN consists of the PDO driver name, followed by a colon, followed by the PDO driver-specific connection syntax

Have a look at http://www.php.net/manual/en/function.pdo-construct.php – that gives examples of the DSNs for each database driver.