~/.phpbrew/init (line 2): 
Invalid argument system
^
from sourcing file ~/.phpbrew/init
	called on line 224 of file /usr/share/fish/config.fish

in function “.”
	called on line 42 of file ~/.phpbrew/phpbrew.fish

in function “__phpbrew_load_user_config”
	called on line 48 of file ~/.phpbrew/phpbrew.fish

from sourcing file ~/.phpbrew/phpbrew.fish
	called on line 1 of file ~/.config/fish/config.fish

from sourcing file ~/.config/fish/config.fish
	called during startup