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Request #71130 Allow PDO to lazy-connect
Submitted: 2015-12-15 21:26 UTC Modified: -
Votes:2
Avg. Score:4.0 ± 1.0
Reproduced:2 of 2 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: tom at r dot je Assigned:
Status: Open Package: PDO related
PHP Version: 7.0.0 OS: Any
Private report: No CVE-ID: None
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 [2015-12-15 21:26 UTC] tom at r dot je
Description:
------------
Currently PDO connects when an instance is created `new PDO(....);` will connect to the database at the point the PDO object is created.

For performance reasons sometimes this is not required and due to the way a lot of frameworks work, will mean connecting even if a query is never made.

To overcome this, PDO is often wrapped in a class which connects at the point a query (or prepare, or other database requiring function is called. See http://stackoverflow.com/questions/23595609/is-this-how-lazy-connecting-of-a-database-connection-is-supposed-to-be and http://stackoverflow.com/questions/5484790/auto-connecting-to-pdo-only-if-needed

It would be better if PDO supported lazy connection as an option when the object is instantiated, for example:


<?php
 $dbh = new PDO($dsn, $user, $password, PDO::LAZY_CONNECT);
?>


Which would only connect to the database server when query(), prepare() or other similar functions are called.




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