memory_limit rejecting value of -1

[notxarb]

The php documentation states that setting the memory_limit to -1 basically set the limit to unlimited. The validation that the engine does doesn't allow for a value of -1 to be passed into the php.ini.

[pablorsk]

Please, try to doing this:

[...]
run.config:
  engine: php
  engine.config:
    runtime: php-7.1
    memory_limit: '-1'

Now, if you check, memory is not set

nanobox run php --info | grep memory_limit
memory_limit => no value => no value