- var_dump: documentation ( source)
<?php
$removedReviewers = $addedReviewers = $madeRequired = $madeOptional = $addedRequired = array();
var_dump((int) $removedReviewers + (int) $addedReviewers);
$removedReviewers = array('gnicol');
var_dump((int) $removedReviewers + (int) $addedReviewers);
$madeRequired = array('bob');
$reviewerChanges = (int) $removedReviewers + (int) $addedReviewers + (int) $madeRequired
+ (int) $madeOptional + (int) $addedRequired;
var_dump(reviewerChanges);