I am working on a project which need to send a video link to any email. But this video link will expire after 3 days automatically and video url should not work. How can I do it? Any help will be appreciated.
1条回答 默认 最新
- dsiy62758 2017-07-20 11:33关注
You have to store the videos Ids along with their creation dateTime in a database, so you can query them in your application layer (PHP).
the structure of your URL you are going to serve could be something like this
domain/videos.php?video_id=123456
the database table
-- videos table +----------+---------------------------+ | video_id | creation_datetime | +----------+---------------------------+ | 123456 | 2017-07-18 14:21:19 | | 123457 | 2017-07-16 11:21:50 | +----------+---------------------------+
The php script videos.php
<?php if(empty($_GET['video_id'])){ die('no video to show');//TODO: proper msg } $mysqli = new mysqli("example.com", "user", "password", "database"); $query = "SELECT video_id FROM videos WHERE video_id = ? AND creation_datetime >= ?"; $stmt = $mysqli->prepare($query); !$stmt ? die('error') : ""; //before 3 days $stmt->bind_param('ss', $_GET['video_id'], date("Y-m-d H:i:s", time() - 3 * 24 * 60* 60)); $stmt->execute(); $result = $stmt->get_result(); if($result->num_rows){ //give the video }else{ die('sorry, the video is expired'); } exit;
Now, depending on the time I write this
domain/videos.php?video_id=123456
would be served anddomain/videos.php?video_id=123457
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