PHP 锁
<?php namespace app\common\utils; use Exception; use Memcache; use think\db\connector\Mysql; /** * LockSystem.php * php锁机制 */ class LockSystem { const LOCK_TYPE_DB = 'SQLLock'; const L
js canvas生成图片
// 用到的库 https://html2canvas.hertzen.com/ // div转图片 <script src="https://html2canvas.hertzen.com/dist/html2canvas.min.js"></script> <script type="text/javascript">
js 打印
// 打印图片 function printThisWindow(url) { let iframe = document.createElement('IFRAME') let doc = null iframe.setAttribute('class', 'print-iframe') iframe.setAttr
PHP redis工具类
class RedisUtil { private Redis|\Swoole\Coroutine\Redis $redis; //当前数据库ID号 protected int $dbId = 0; //当前权限认证码 protected mixed $auth; /** * 实例化的对象,
PHP QQ邮箱Imap
<?php namespace app\common\email; class QqEmailImap { protected $host = '{imap.qq.com:993/imap/ssl}'; // IMAP服务器地址 protected $username; // 邮箱地址，例如：xxx@qq.com protected $password; // 授