A Laravel helper to call a callable function conditionally

helpers.php

if (! function_exists('when')) {
    /**
     * Execute the given callback function if the condition is true.
     *
     * @param  bool  $condition
     * @param  callable  $function
     * @return mixed|null
     */
    function when(bool $condition, callable $function)
    {
        if ($condition) {
            return $function();
        }

        return null;
    }
}

Here is an update for the function

if (! function_exists('when')) {
    /**
     * Execute the given callback function if the condition is true.
     *
     * @param  bool  $condition
     * @param  callable  $function
     * @param  mixed  $default
     * @return mixed|null
     */
    function when(bool $condition, callable $function, mixed $default = null)
    {
        return $condition ? $function() : $default;
    }
}