Incensitive string contains

helpers.php

if (! function_exists('istr_contains')) {
    /**
     * Insensitively check if given haystack contains anything like the given needle(s).
     * 
     * @param  string    $haystack 
     * @param  string[]  $needles
     * @return boolean
     */
    function istr_contains($haystack, $needles = [])
    {
      // return str_contains(mb_str_lower($haystack), array_map('mb_str_lower', array_wrap($needles)));
        foreach (array_wrap($needles) as $needle) {
            if ($needle !== '' && mb_stripos($haystack, $needle) !== false) {
                return true;
            }
        }

        return false;
    }
}