Operator per line sniff miscounts something about phpcs-calisthenics-rules HOT 2 CLOSED

$tmp = $compiler->subcompile($this->getNode( 'body' ));

$tmp->write('endwhile;' . "\n");

The idea is to create defensive programming. You may have NULL as a return of subcompile(), which could potentially lead into a fatal error.
Based on that, you're only allowed to have 1 object operator per line (read as statement), to prevent context change and also possible breaking Law of Demeter.

from phpcs-calisthenics-rules.

Ah, I thought it meant per line of text (each method call on new line style), my bad. :) Message could be tad reworded for clarity.

PS I need to dwell on this one, it's going to turn some tidy pieces of code into unholy stack of assignments...

from phpcs-calisthenics-rules.