Error handle message PHP7.0

[rcabralyu]

Hi, today i install this library for replace the old bluerhinos/phpMQTT for PHP7.0, but when i try get the message the request go down.

PD: i can publish without problems

[kuzmichus]

I faced the same problem:

PHP 7.0.9-1+deb.sury.org~wily+1 (cli) ( NTS ) I get an error

Error segmentation (made of memory dump)

After processing a received message.

[argakon]

related issue #53