$max_wait = $wait1 > $wait2 ? $wait1 : $wait2; #### $max_wait = $wait1 if $wait1 > $max_wait; #### $max_wait = ($wait1 > $wait2) ? ($wait1 > $max_wait) ? $wait1 : $max_wait : ($wait2 > $max_wait) ? $wait2 : $max_wait;