[freetds] php ms-sql image type retrieval problem

ZIGLIO Frediano Frediano.Ziglio at vodafoneomnitel.it
Thu Apr 10 08:47:11 EDT 2003


> 
> Hello,
> 
> I have been working for a short while trying to extend a 
> small web application we have to store images in an SQL 
> database. While the insertion script seems to work, 
> attempting retrieval causes PHP to crash with a bus error 
> "error_handler: Data-conversion resulted in overflow." - 
> which I believe is actually FreeTDS complaining, not PHP.
> 

What API are you using? mssql, ct-lib or dblib ?
How do you compile php ?
ct-lib have problem, you should get php 4.3.0 or later (previous have buffer
overflow problems and others)
Also get FreeTDS 0.61 version (latest).

> I have the PHP magic_quote_runtime, _gpc and _sybase turned 
> on for the script. I have (almost) successfully used a text 
> type field to store this data (seems to get truncated for 
> some reason) so I believe my code is at least partially correct.
> 
> I have found 1 message in the archive from December that 
> indicates all quotes have to be quoted and NULL characters 
> stripped at some point to keep this from happening. Will this 
> not corrupt my output? I am not sure if the NULL character is 
> valid or necessary for the file formats I am using (in this 
> instance .png).
> 
> -Will
> 

bye
  freddy77

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