php秒分钟互换

转:http://zhidao.baidu.com/question/2052196957516833387.html

http://blog.sina.com.cn/s/blog_979d1c9f0101sk71.html

<?php

function getSeconds($string){
    $arr = explode(':', $string);
    $len = count($arr);
    return (int)$arr[$len - 1]  + (int)$arr[$len - 2] * 60 + (($len > 2 ? (int)$arr[$len - 3] : 0) * 60 * 60);
} 

?>

 <?php echo gmstrftime('%H:%M:%S',800);  ?>

 显示格式如下：00:03:27