Helpful Laravel Custom Helper Functions

helper.php

<?php

/**
 * case insensetive filter for collection
 */
 
if (!function_exists('collectionFilter')) {
    function collectionFilter($collection,$attribute,$value)
    {
        return $collection->filter(function ($item) use ($attribute, $value) {
            return strtolower($item[$attribute]) == strtolower($value);
        });
    }
}