Question

在我正在开发的网站中，我希望在访问部分中实现stackoverflow的userprofile“see”，它说我们上次见到的时候。这给了我约会。但我想要“2h ago”。如何做到这一点？我试过这个：

    <?php 
     if(isset($_COOKIE['AboutVisit'])) 
  { 
     $last = $_COOKIE['AboutVisit']; 
  } 


     setcookie(AboutVisit, time ()) ; 
     if (isset ($last)) 
     { 
     $change = time () - $last; 
     if ( $change > 60)
     { 
     echo "Welcome back! <br> You last visited on ". date("m/d/y",$last) ; 
     // Tells the user when they last visited 
     } 

     else 
     { 
     echo "Welcome to our site!"; 
     //Greets a first time user 
     } 
}
 ?>

Answer 1

只需在登录cookie上使用时间戳即可。如果用户第一次登录，则cookie不会提前出现，因此您可以提供“欢迎来到我们的网站！”否则，只要用户登录，就会在登录cookie上标记日期和时间，然后使用该值显示“上次看到”的时间。

Answer 2

以下功能将计算开始日期和结束日期之间的时间跨度。您可以根据自己的意愿修改它以格式化时间跨度：

/**
     * Calculates the timespan between the start and end datetime
     * @param timestamp $start The start timestamp for the time span
     * @param timestamp $end The end timestamp for the time span
     * @return string A string with the matched timespan
     */
    public function timespan( $start, $end )
    {
        $seconds = $end - $start;
        $days = floor( $seconds / 60 / 60 / 24 );
        $hours = $seconds / 60 / 60 % 24;
        $mins = $seconds / 60 % 60;
        $secs = $seconds % 60;

        $duration = "";
        if ( $days > 0 )
        {
            $hr = ($hours > 1) ? " $hours hours" : (($hours > 0) ? " $hours hour" : "");
            $duration .= ($days > 1) ? "$days days$hr ago" : "$days day$hr ago";
        }
        elseif ( $hours > 0 )
        {
            $mi = ($mins > 1) ? " $mins minutes" : (($mins > 0) ? " $mins minute" : "");
            $duration .= ($hours > 1) ? "$hours hours$mi ago" : "$hours hour$mi ago";
        }
        elseif ( $mins > 0 )
        {
            $duration .= ($mins > 1) ? "$mins minutes ago" : "$mins minute ago";
        }
        elseif ( $secs > 0 )
        {
            $duration .= ($secs > 1) ? "$secs seconds ago" : "$secs second ago";
        }

        $duration = trim( $duration );
        if ( $duration == null )
            $duration = '0 seconds ago';

        return $duration;
    }

祝你好运！

如何在我的网站上实现“看到”

2 个答案: