Hi Ricardo,

Here how to pluralize or singularize irregular strings (based on old Laravel 4 issue #2101) for Laravel 4:

<?php
// Fails:
// echo str_plural('bureau');// → 'bureaus'

$newIrregular = ['bureau' => 'bureaux'];
$oldIrregular = \Illuminate\Support\Pluralizer::$irregular;
\Illuminate\Support\Pluralizer::$irregular = array_merge($oldIrregular, $newIrregular);

// Success:
echo str_plural('bureau');// → 'bureaux'

Cheers, Tortue Torche

And here how to pluralize or singularize irregular strings for Laravel 5:

// Fails:
// echo str_plural('bureau');// → 'bureaus'

$newIrregularRules = ['bureau' => 'bureaux'];
\Doctrine\Common\Inflector\Inflector::rules('plural', [
    'irregular' => $newIrregularRules
]);

// Success:
echo str_plural('bureau');// → 'bureaux'

I think this topic can be marked as solved.