shotgun.php

<?php

// Find files of all classes loaded..
$loader = require('vendor/autoload.php');
$files = array_filter(array_map(function($c) use ($loader) {
  return $loader->findfile($c);
}, get_declared_classes()));

// Better solution.. find all required files
array_map(function($f) use ($i) {
  inotify_add_watch($i, $f, IN_CLOSE_WRITE);
}, get_required_files());