ID: 10580
User Update by: [EMAIL PROTECTED]
Old-Status: Closed
Status: Open
Bug Type: COM related
Operating system: Win2k
PHP Version: 4.0.6-dev (dated 16-May-2001)
Description: Access Violation using ADODB

Bug reopened, CVS dated 16 May 2001,

message when accessing database:
PHP has encountered an Access Violation at 011CD614

Previous Comments:

[2001-05-08 20:12:03] [EMAIL PROTECTED]
works here.

the only mistake i found was, that if either the connect string or the query was wrong 
$conn->execute() returned a nullpointer instead of a valid recordset.
this only produced a warning so there was a nullpointer exception at the first attempt 
to access $rs->...
now i produce an error (unfortunatelly this causes the script to stop).
i'll fix this in the code and switch back to a warning, but i think it's ok for now.


[2001-05-08 19:18:07] [EMAIL PROTECTED]
Here is a code snippet for testing ADODB:


define ("DSN_USER", "sa");
define ("DSN_PWD", "");
define ("DB_SERVERNAME", "localhost");
define ("DATABASENAME", "Northwind");

Initial Catalog=".DATABASENAME."; User ID=".DSN_USER."; Password=".DSN_PWD);

$conn = new COM("ADODB.Connection") or die("Cannot start ADO");


$command = "SELECT * from employees";

$rs = $conn->Execute($command); // Recordset
$num_columns = $rs->Fields->Count();


for ($i=0; $i < $num_columns; $i++) {
        $fld[$i] = $rs->Fields($i);
$rowcount = 0;
while (!$rs->EOF) {
        for ($i=0; $i < $num_columns; $i++) {
                $arr[$i][$rowcount] = $fld[$i]->value;
        $rowcount++;                    // increments rowcount


$rs = NULL;
$conn = NULL;


This produces the error: PHP has encountered an Access Violation at 2474FF04

You can also produce an Access Violation by trying to use MSXML Parser 3.0,
and by calling the loadXML() method.

I downloaded php 4.0.6-dev [2001-05-04] build from


[2001-05-08 16:30:55] [EMAIL PROTECTED]
could you provide a short snippet, i can't reproduce this.
are you using the cgi or the isapi version ?


[2001-05-04 22:54:14] [EMAIL PROTECTED]
Same bug, access violation using ADODB and MSXML Parser,
but using a 4.0.6 build, dated 2001-05-04.


[2001-05-04 11:29:31] [EMAIL PROTECTED]
This is now fixed in CVS. Fix will be in 4.0.6.



The remainder of the comments for this report are too long.  To view the rest of the 
comments, please view the bug report online.

Full Bug description available at:

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