单击时如何删除按钮/单击 php 中的按钮替换时间

Question

how to remove a button when clicked / click the button replace time in php

<form action="" method="POST">
    <button name="click" class="click">Click me!</button>
</form>

<?php
    if (isset($_POST["click"])){
     $currentDateTime = new \DateTime();
     //set timeZone
     $currentDateTime->setTimezone(new \DateTimeZone('Singapore'));
     $dateTime = $currentDateTime->format('H:i');
     echo $dateTime;
    }
    ?>

Answer 1

I think you are telling about this:

<?php
    if (isset($_POST["click"])){
     $currentDateTime = new \DateTime();
     //set timeZone
     $currentDateTime->setTimezone(new \DateTimeZone('Singapore'));
     $dateTime = $currentDateTime->format('H:i');
     echo $dateTime;
    }else{echo '<form action="" method="POST"><button name="click" class="click">Click me!</button></form>';}
    ?>