calevano

$new = [
              [
                'hashtag' => 'a7e87329b5eab8578f4f1098a152d6f4',
                'title' => 'Flower',
                'order' => 3,
              ],

              [
                'hashtag' => 'b24ce0cd392a5b0b8dedc66c25213594',
                'title' => 'Free',

calevano

$key = array_search('100', array_column($userdb, 'uid'));

calevano

if (!function_exists('mb_ucfirst')) {
    /**
     * @param $str
     * @param string $encoding
     * @param bool $lower_str_end
     * @return string
     */
    function mb_ucfirst($str, $encoding = "UTF-8", $lower_str_end = false)
    {
        $first_letter = mb_strtoupper(mb_substr($str, 0, 1, $encoding), $encoding);