Please try using this snapshot:

  http://snaps.php.net/php5.4-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/

Works for me (Warning: snmpget(): Invalid object identifier: something in - on line 3) and code looks correct, too.

Updated to latest. Problem persists.

I noticed something though:

This code works (only 2 lines):

$ip = "[2001:abc:dead:beef::22]";
$test = snmpget($ip, "mycommunity", "something");


This code does not work and throws the error about missing closing bracket:

$ip = "[2001:abc:dead:beef::22]";

for($j=1;$j<5;$j++)
{
 $test = snmpget($ip, "mycommunity", "something".$j);
 echo "Outlet $j: $test\n";
}


First iteration of for loop works fine, but after second iteration it complains 
about malformed ipv6 address, which does not make any sense. Same issue happens if 
I use a while loop.

OUTPUT:


Outlet 1: 1

Warning: snmpget(): malformed IPv6 address, closing square bracket missing in 
test.php on line 9
Outlet 2: 

Warning: snmpget(): malformed IPv6 address, closing square bracket missing in 
test.php on line 9
Outlet 3: 

Warning: snmpget(): malformed IPv6 address, closing square bracket missing in 
test.php on line 9
Outlet 4:

Basically calling snmpget more than once will throw this error.

Code:


$ip = "[2001:abc:dead:beef::22]";
$test = snmpget($ip, "mycommunity", "something");
$test = snmpget($ip, "mycommunity", "something-else");
$test = snmpget($ip, "mycommunity", "something-different");

Throws this error twice:

Warning: snmpget(): malformed IPv6 address, closing square bracket missing in 
test.php

Warning: snmpget(): malformed IPv6 address, closing square bracket missing in 
test.php

Hi Andy,

I don't have an SNMP-enabled device at hand, can you try this patch?
https://github.com/johannes/php-src/compare/bug64124.diff

This should fix the only potential problem explaining this. Thanks.

Hi,

patch went well, but I am getting a segmentation fault while executing the code.

I made sure to use make distclean first, so I recompiled everything from scratch.

I used the current built: php5.4-201302011830 (which worked with the same test 
code before I applied the patch)

johannes, I found the same bug source an currently I'm in the middle of testing it.

ps. I wonder why specifying "s/" in param parsing call is not enough...

Please try using this snapshot:

  http://snaps.php.net/php5.4-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/

I confirm that there is no more issue with the latest version of php. In my case: 
php5.4-201302132030

Thank you!

The fix for this bug has been committed.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.

 For Windows:

http://windows.php.net/snapshots/
 
Thank you for the report, and for helping us make PHP better.