Bug #73865 [Opn->Fbk]: extending PDO conflict with persistent connections

Edit report at https://bugs.php.net/bug.php?id=73865&edit=1 ID: 73865 Updated by: cmb@php.net Reported by: gpkappos at ucy dot ac dot cy Summary: extending PDO conflict with persistent connections -Status: Open +Status: Feedback Type: Bug Package: PDO OCI Operating System: Windows 10 PHP Version: 5.6.29 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: I have no OCI setup to test this, but I don't think it's driver specific behavior, and for PDO_MYSQL, PDO_SQLITE and PDO_ODBC I get the expected result. Or can you still reproduce this with any of the actively supported PHP versions[1]? [1] <https://www.php.net/supported-versions.php> Previous Comments: ------------------------------------------------------------------------ [2017-01-11 07:02:54] gpkappos at ucy dot ac dot cy Hello, thank you for your reply. Here is the script, it uses oracle instant client and an oracle database but no tables are needed, just a connection: <?php class A extends \PDO { public function __construct() { parent::__construct('oci:dbname=//<dbserver1>:1521/<servicename1>;charset=AL32UTF8', 'scott', 'tiger', [PDO::ATTR_PERSISTENT => true]); } } class B extends \PDO { public function __construct() { parent::__construct('oci:dbname=//<dbserver1>:1521/<servicename1>;charset=AL32UTF8', 'scott', 'tiger', [PDO::ATTR_PERSISTENT => true]); } } $a = new A(); var_dump($a); $b = new B(); var_dump($b); ?> ------------------------------------------------------------------------ [2017-01-11 04:57:50] krakjoe@php.net Thank you for this bug report. To properly diagnose the problem, we need a short but complete example script to be able to reproduce this bug ourselves. A proper reproducing script starts with <?php and ends with ?>, is max. 10-20 lines long and does not require any external resources such as databases, etc. If the script requires a database to demonstrate the issue, please make sure it creates all necessary tables, stored procedures etc. Please avoid embedding huge scripts into the report. ------------------------------------------------------------------------ [2017-01-05 06:22:16] gpkappos at ucy dot ac dot cy Description: ------------ When extending PDO, if you use persistent connections you can only create instances of the first object that uses the connection. In the example below the constructor for B returns an instance of A Test script: --------------- class A extends \PDO { public function __construct() { parent::__construct('oci:dbname=//dbserver.example.org:1521/dbserver.example.org;charset=AL32UTF8', 'test', 'testpw', [PDO::ATTR_PERSISTENT => true]); } } class B extends \PDO { public function __construct() { parent::__construct('oci:dbname=//dbserver.example.org:1521/dbserver.example.org;charset=AL32UTF8', 'test', 'testpw', [PDO::ATTR_PERSISTENT => true]); } } $a = new A(); var_dump($a); $b = new B(); var_dump($b); Expected result: ---------------- object(A)[1] object(B)[2] Actual result: -------------- object(A)[1] object(A)[2] ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=73865&edit=1