When I add an emoji to the database, it appears as (???)
Use this method to add and update data
$post_Text = 'Wh22 ';
$update_post =$database->prepare("UPDATE `Wo_Posts` SET `postText` = :postText WHERE `Wo_Posts`.`id` = 7346");
$update_post->bindParam("postText",$post_Text);
$update_post->execute();
The result in the database was like this
Wh22 ????????????
The collation I use is utf8mb4_unicode_ci