ID:               33283
 User updated by:  david dot prusak at copart dot com
 Reported By:      david dot prusak at copart dot com
-Status:           Feedback
+Status:           Open
 Bug Type:         PDO related
 Operating System: Windows XP
 PHP Version:      5.0.4
 New Comment:

No, adding that didn't stop the GPF, sorry.


Previous Comments:
------------------------------------------------------------------------

[2005-06-09 23:59:47] [EMAIL PROTECTED]

If you add:

$stmt = null;
$dbh = null;

to the end of your script, does the segfault go away?

------------------------------------------------------------------------

[2005-06-09 21:26:39] david dot prusak at copart dot com

Oops sorry about that.

This fails with a gpf:
<?php
try {
$dbh = new PDO('odbc:DATABASE', 'USER', 'PASS')
        $stmt = $dbh->prepare("SELECT * FROM TABLE");
} catch (Exception $e) {
        echo "Failed: " . $e->getMessage();
}
?>

While this works just fine and prints "Connected",
<?php
try {
$dbh = new PDO('odbc:DATABASE', 'USER', 'PASS')
        print "Connected\n";
} catch (Exception $e) {
        echo "Failed: " . $e->getMessage();
}
?>

When I use exec, I don't get the GPF, but I'm also not getting the
correct results.  When trying to query a fake table, I don't get an
error.  When I query the correct table, I don't get a count.

When I put in an incorrect database, user or password, I do get the
correct error.  So that tells me that I can connect to the database.

<?php
try {
$dbh = new PDO('odbc:DATABASE', 'USER', 'PASS')
        print "Connected<br>";
        $count = $dbh->exec("SELECT * FROM FAKETABLE");
        print "Count: $count";
} catch (Exception $e) {
        echo "Failed: " . $e->getMessage();
}
?>

I did verify the php.ini is correct.  I put in a typo in the ini file
to see if Apache will err on start up and it did.  (brute force method
:) )

Hope that's not too much information.

--David

------------------------------------------------------------------------

[2005-06-09 19:39:53] [EMAIL PROTECTED]

Sounds like two different issues, neither of which is PDO specific ;-)

Check that you were modifying the right php.ini file, and that you
restarted apache after changing it. (phpinfo() will help you to figure
that out).

Your script is broken, btw. You catch the exception, effectively
ignoring the error, and then continue to use the $dbh even though you
"know" it isn't there.  You should move that code inside the try {}
block, just after you echo  "Connected";

The GPF concerns me, but I suspect it will go away once you load PDO
correctly.  If you're feeling motivated, can you try pruning down your
script to the smallest possible test case that reproduces the GPF?  I'm
hoping you can cut it down to something like this:

<?php
class foo {
  function __construct() {
     throw new Exception("bang");
  }
}

try {
  $foo = new foo;
} catch (Exception $e) {
  echo "Failed " . $e->getMessage();
}

$foo->bar();
?>

------------------------------------------------------------------------

[2005-06-09 19:10:13] david dot prusak at copart dot com

Might want to ingore the gdb information I provided.  It's not correct
on the windows system.  I more than happy to help debug.  Just let me
know what you need and how I can get it to you.

Thanks,
--David

------------------------------------------------------------------------

[2005-06-09 17:56:53] david dot prusak at copart dot com

Description:
------------
When attempting to use the PDO class, Apache GPF's.

My PHP.ini reads as follows:

extension_dir = "C:\php\ext"
extension=php_pdo.dll
extension=php_pdo_odbc.dll

Apache/PHP doesn't alert me that the libraries couldn't be loaded.

The code provided is 100% reproducable on my system.  

Removing all the code except the database connection doesn't crash. 
The code does say that the connection was established.

I'm not 100% sure if it's php or my php.ini file.  The backtrace tells
me that the class doesn't exist.  That leaves me with a suspicion that
it could be config related.

Reproduce code:
---------------
<?php

try     {
        $dbh = new PDO('odbc:IBMDB2', 'USER', 'PASS', 
                array(PDO_ATTR_PERSISTENT => true));
                echo "Connected\n";
        } catch (Exception $e) {
                echo "Failed: " . $e->getMessage();
}

        $email = "[EMAIL PROTECTED]";
        $stmt = $dbh->prepare("CALL SPROC(?, ?)");
        $stmt->bindParam(1, $email);
        $stmt->bindParam(2, $return_value, PDO_PARAM_STR, 80);
        $stmt->execute();
        print "procedure returned $return_value\n";
?>

Expected result:
----------------
Results from the database without error

Actual result:
--------------
(gdb) target exec C:\php\php.exe
(gdb) run test.php
Starting program: /cygdrive/c/php/php.exe test.php

PHP Fatal error:  Class 'PDO' not found in c:\Documents and
Settings\dmprusak1\My
Documents\htdocs_80\pages\project_manager\test.php on line 17

Fatal error: Class 'PDO' not found in c:\Documents and
Settings\dmprusak1\My
Documents\htdocs_80\pages\project_manager\test.php on line 17

Program received signal SIGSEGV, Segmentation fault.
0x77ea3c00 in RpcRaiseException ()
   from /cygdrive/c/WINDOWS/system32/rpcrt4.dll


------------------------------------------------------------------------


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