如何停止時間計數器在00在PHP和javascript

Question

我想使時間計數器它工作正常，但它不會停止在00:00:00並返回到24:00:00。 這是我的代碼。

<?php 

session_start(); 
$from_time1 = date('Y-m-d H:i:s'); 
$to_time1 = $_SESSION['end_time']; 
$timefirst = strtotime($from_time1); 
$timesecond = strtotime($to_time1); 

$difference = $timesecond-$timefirst; 
echo gmdate("H:i:s",$difference); 
?> 

Answer 1

<?php 
    session_start(); 
    $from_time1 = date('Y-m-d H:i:s'); 
    $to_time1 = $_SESSION['end_time']; 
    $timefirst = strtotime($from_time1); 
    $timesecond = strtotime($to_time1); 

    $difference = $timesecond-$timefirst; 

    $diff= gmdate("H:i:s",$difference); 
    if($diff == '00:00:00'){ 
    //stop the timer logic 
    }else{ 
    echo $diff; 
    } 

?> 

你可以試試這個