<?php

/**
 * Since PHP 8, count() function will throw runtime errors when provided with bad (uncountable) input like null.
 */
if (!function_exists('safeCount')) {
    function safeCount($potentiallyCountable)
    {
        if (is_countable($potentiallyCountable)) {
            return count($potentiallyCountable);
        }

        return 0;
    }
}