ID: 24244
User updated by: bl at btn dot de
Reported By: bl at btn dot de
Status: Open
Bug Type: ODBC related
Operating System: Red Hat Linux
PHP Version: 4.3.2
New Comment:
sorry ... one more thing ...
in my "Actual Results" section I forgot to remove the "or"'s ...
So of course the "or"'s are not part of the string which is returned by
odbc_errormsg() ...
Previous Comments:
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[2003-06-18 06:50:30] bl at btn dot de
Description:
------------
We use the IBMDB2 database on our systems. The following bug occured
while writing a class supposed to halt the code on database exceptions.
While checking for strlen(odbc_errormsg())==0 for aborting the routine
PHP sometimes (about once in four calls) returns Bad Strings (see
below).
Maybe the "message" is taken from an unallocated space on PHP's heap
?!?
It's not that much of a problem to come up with a workaround but PHP
shouldn't return random bits of the memory.
Reproduce code:
---------------
$link = odbc_connect("mydb", "myusr","mypwd");
$sql = "[INSERT FLAWLESS STATEMENT HERE]";
odbc_exec($link,$sql)
if(strlen(odbc_errormsg())>0) {
echo "SQL-Error " . odbc_errormsg();
}
odbc_close($link);
Expected result:
----------------
If $sql contains a valid statement odbc_errormsg() should return an
empty string (according to the PHP-Documentation)
Actual result:
--------------
Sometimes parts of the outstream, a URL, short binary data,
PHP-Variable names anything might happen ... as I mentioned above, the
data might be part of PHP's heap. Some Examples:
T_URI (?) or
(a variable name ?)
ze:12px; } .menue_common{ [... here it goes on for quite a while ...]
width: 140px; margin-bottom: 2p
(part of our stylesheet) or
ÿÿ or
(junk)
Àò or
(more junk)
aten_I or
(I have that somewhere earlier but I can't remember)
-urlencoded
(this shouldn't be an errormsg)
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Edit this bug report at http://bugs.php.net/?id=24244&edit=1
