Edit report at https://bugs.php.net/bug.php?id=63208&edit=1
ID: 63208
Comment by: tomas dot var at dtr-sistemas dot com
Reported by: gopeyx at gmail dot com
Summary: Wrong conversion of byte array VARIANT which
contains null byte to string
Status: Open
Type: Bug
Package: COM related
Operating System: Windows NT W-AM-13079 6.1 build
PHP Version: 5.3.17
Block user comment: N
Private report: N
New Comment:
I have the same problem when I want to extract the value of a LONGBINARY field
from an MS-Access or MSSQL Database (OLE Field exactly), and the OLE embeeded
header contains some zero bytes. I can obtain only 3 bytes when it converts to
a string for save to a file. And when I loop with "foreach" the VARIANT ARRAY
of UNSIGNED BYTES it loops correctly (except for the byte '\0' after every
valid byte) and if I count the array with "count($field->Value)" for example,
it results the double lenght that expects.
Why don't exists in PHP a way to obtain a simple array of bytes for a variable,
or access the data like a "string" of bytes?
Previous Comments:
------------------------------------------------------------------------
[2012-10-03 12:40:18] gopeyx at gmail dot com
Description:
------------
I have a VARIANT of type 8209 which is an array of bytes (VT_ARRAY | VT_UI1).
This array contains null byte in the middle.
When trying to convert it to a string only bytes before null byte are used.
Others are ignored.
But they are present in the object. You can see it if you walk through the
bytes of variant via foreach().
Test script:
---------------
<?php
$string = "ab\0cd";
$variant = new VARIANT($string, VT_ARRAY | VT_UI1); // Array of bytes
$converted = (string) $variant;
var_dump($string);
var_dump($converted);
Expected result:
----------------
string(5) "abcd"
string(5) "abcd"
// $converted variable should be equal to the original $string and should
contain 5 characters.
Actual result:
--------------
string(5) "abcd"
string(2) "ab"
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=63208&edit=1
