ID:               39582
 User updated by:  lars dot roessiger at gmail dot com
 Reported By:      lars dot roessiger at gmail dot com
 Status:           Open
 Bug Type:         MSSQL related
 Operating System: Windows Server 2003
 PHP Version:      5.2.0
 New Comment:

Tried to reproduce the problem on Linux with FreeTDS:

"Unable to select database" with mssql_pconnect().
No problems with mssql_connect(). Error handler properly finishes.


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

[2006-11-22 09:35:16] lars dot roessiger at gmail dot com

Description:
------------
Unexpected behaviour when SQL queries fail.

Reproduce code:
---------------
<?
    $db_host = "";
    $db_user = "";
    $db_pass = "";
    $db_base = "";

    function error_handler($errno, $errmsg)
    {
        echo $errmsg;
        exit(1);
    }

        // script will hang on sql error
    $dbconn = mssql_connect($db_host, $db_user, $db_pass);
        // refreshes will cause sql server to refuse selection of db
    //$dbconn = mssql_pconnect($db_host, $db_user, $db_pass);
    mssql_select_db($db_base, $dbconn);

    error_reporting(0);
    set_error_handler("error_handler");

    if($_GET['error'] == "plain")
        trigger_error("Error", E_USER_ERROR);   // produce error
    else if($_GET['error'] == "sql")
        mssql_query("SELECT asdf FROM asdf");   // produce sql error
?>


Expected result:
----------------
mssql_connect(): On SQL error the script should not hang but finish.

mssql_pconnect(): On SQL error further connection requests should not
fail.

Actual result:
--------------
If an SQL error occurs, database connections established with
mssql_pconnect() get lost. New connection requests fail with
"mssql_select_db() [function.mssql-select-db]: Unable to select
database".

When using mssql_connect() instead of mssql_pconnect(), execution of
the resp. PHP script will hang (up to 5 minutes). The error handler
will finish its job, but PHP does not close the connection to the
browser - it keeps "loading" (although no data is being sent anymore).


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


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