a problem with 'Nsqlookupd'

[Youngyezi]

file: Nsqlookupd.php
line:101

$producers = isset($r['data'], $r['data']['producers']) ? $r['data']['producers'] : array()

NSQ API: /lookup?topic=$topic

response : {"channels":[...],"producers":[...]}

maybe change to :

$producers = isset($r['producers']) ? $r['producers'] : array()

[yunnian]

use https://github.com/yunnian/php-nsq