Req #35800 [Opn]: pg_query_params fails to escape NULL in bytea fields
Edit report at https://bugs.php.net/bug.php?id=35800&edit=1
ID: 35800
Updated by: yohgaki@php.net
Reported by: vinny at xs4all dot nl
Summary: pg_query_params fails to escape NULL in bytea fields
Status: Open
Type: Feature/Change Request
Package: PostgreSQL related
Operating System: winxp sp2
PHP Version: 5.1.1
-Assigned To:
+Assigned To: yohgaki
Block user comment: N
Private report: N
New Comment:
I guess this is C string issue and still outstanding.
Previous Comments:
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[2011-01-26 15:11:30] wmoran at potentialtech dot com
I can confirm this problem on FreeBSD 8.1 with PHP 5.3.5 and PostgreSQL 8.4.6.
Note that it is ONLY parametrized queries that exhibit the problem. Proper use of pg_escape_bytea()
and pg_unescape_bytea() works as expected.
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[2006-07-10 14:09:15] burleybutler at hotmail dot com
I too found using a parameter doesn't work for uploading bytea binary data - either unescaped
(zero bytes got saved) or using pg_escape_bytea (too many bytes got saved). Was hoping it would get
around the memory/speed problems with pg_escape_bytea for large chunks of data.
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[2005-12-25 12:53:00] vinny at xs4all dot nl
Description:
------------
pg_query_params() stops processing binary 'bytea' field data at hex '00'.
Reproduce code:
---------------
<?php
/**
create a PostgreSQL database (I used 8.1) with a table that has a 'bytea' field. Use
pg_query_params to insert binary data from a JPG image into the bytea field, something like:
*/
pg_query_params("INSERT INTO tabel (byteafield) values ($1)",
file_get_contents('file.jpg'));
?>
Expected result:
----------------
The image should be stored in the database completely.
Actual result:
--------------
Only the first four bytes of the JPG data make it into the database.
JPG data starts with: hex FF D8 FF E0 00 10 4A 46 49
Apparently pg_query_params stops processing the content at '00' which I guess is because
PHP thinks it is at 'EOF'.
If you insert the data with a normal pg_query call and using pg_escape_bytea() on the JPG data then
everything works just fine and the image is stored properly.
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