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Date: Wed, 09 Apr 2008 10:14:56 +0200
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Subject: destroy the current object (PDO)
From: php-dev.list@daevel.net (Olivier Bonvalet)

Hello,

I would like to correct a little "problem" with : when an error occured 
in the constructor
(a connection error for example) no object is returned. Internally, the 
object is created
then destroyed (via "ZVAL_NULL(object);" statement).

The problem is when the PDO class is derived and the error catched in 
the "child" constructor :
$this is destroyed, but the object still exists in memory (and the 
__destruct will be called at the
end of the script).

Is there a way here to really destroy the object ?

I submit a bug report (44669), but C. Rodriguez seems to don't agree 
with me. So I would like
to correct the problem myself but... I can't :D

I join here a better example of this behaviour :
<?php
class PDOtest extends PDO
{
    public function __construct( $dsn, $user, $password )
    {
        try {
            parent::__construct( $dsn, $user, $password );
        } catch( PDOException $e ) {
            echo 'there is an error... but continue the script', PHP_EOL;
        }
    }

    public function __destruct()
    {
        echo 'DESTRUCT ::: If called, then the object was existing', 
PHP_EOL;
    }
}

echo 'CONSTRUCT ::: ';
$test = new PDOtest( 'mysql:host=localhost;dbname=test', 'baduser', 
'orpass' );
echo PHP_EOL;

echo 'Here you can see that the object is "destroyed" : ';
var_dump( $test );

echo 'But force to null, to be sure.', PHP_EOL;
$test = NULL;

echo PHP_EOL, 'SOME WORKS', PHP_EOL;
?>