print $lines = $some_value? 'true' : 'false'; #### print $lines = ($some_value? 'true' : 'false'); #### print ($lines = $some_value)? 'true' : 'false'; #### print (($lines = $some_value)? 'true' : 'false'); #### (print $lines = $some_value)? 'true' : 'false';