Description:
------------
Condition:
Interbase XE.
package used: PHP_INTERBASE.DLL inserted in php-5.3.8-nts-Win32-VC9-x86
I have used gds32.dll of Interbase XE (version 10.0.2.474), renamed to fbclient.dll and stored in C:\PHP directory. (This is the one that surely is used because, if I remove it, the PHP_INTERBASE.DLL fails to be loaded).

To replicate, create a table called TB_ERROR in your interbase database:
CREATE TABLE TB_ERROR (
    IDX_ERROR  INTEGER NOT NULL,
    FLAG       BOOLEAN
);


Test script:
---------------
<?php
$database = "127.0.0.1/3052:/database/ERRORPHP.ib";
$username ="sysdba";
$password ="masterkey";
$dbh = ibase_connect($database, $username, $password);
$trans = ibase_trans(IBASE_DEFAULT,$dbh);
$stmt = 'SELECT IDX_ERROR,FLAG FROM TB_ERROR';
$sth = ibase_query($dbh,$stmt);
$line = ibase_fetch_row($sth);
foreach ($line as $col_value) print ("$col_value<BR>\n");
ibase_commit($trans);
?>



Expected result:
----------------
(The table is empty, so you do not expect ant result and any error)

Actual result:
--------------
Error HTTP 500.0 - Internal Server Error
C:\Program Files\PHP\php-cgi.exe