icambridge · February 23, 2017 16:50
diff --git a/four.php b/four.php
 <?php

 $logger = getLogger();
 if (($logger instanceof Logger) == false) {
  exit(-1);
 }
diff --git a/one.php b/one.php
 <?php

 $people = getNumberOfPeople();
 if ($people === null) {
  exit(-1);
 }

 // do numeric logic
diff --git a/three.php b/three.php
 <?php

 $logger = getLogger();
 if ($logger == null) {
  exit(-1);
 }
diff --git a/two.php b/two.php
 <?php

 $people = getNumberOfPeople();
 if (is_numeric($people) == false) {
  exit(-1);
 }

 // do numeric logic
	<?php

	$logger = getLogger();
	if (($logger instanceof Logger) == false) {
	exit(-1);
	}