使用方法：<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>倒计时-军少博客网-4dn.net</title> </head> <body> <?php $tiem='1603769505'?><?php //$tiem 结束时间 减 time() 当前时间?> <div class="box" end-time="<?php echo $tiem?>" start-time="<?php echo time()?>"> 距离活动结束还有<span id="time"></span> </div> <script src="https://cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script> <script> //不足两位补0 function timeS(num){ return ('0'+num).slice(-2); } function FreshTime(){ //这两个是后台返回的时间戳，为了便于测试把开始时间变成当前本地的时间 var attr_s = $('.box').attr('start-time'); var attr_e = $('.box').attr('end-time'); var startTime = new Date().getTime(); var endTime = parseInt(attr_e*1000); var differTime = endTime - startTime; //两时间差 var d = parseInt(differTime/(24*60*60*1000)); var h = parseInt(differTime/(60*60*1000)%24); var m = parseInt(differTime/(60*1000)%60); var s = parseInt(differTime/1000%60); var t_html = d+"天"+timeS(h)+"时"+timeS(m)+"分"+timeS(s)+"秒"; $("#time").html(t_html); if(differTime<=0){ $("#time").html('团购已结束'); clearInterval(timer); } } FreshTime(); var timer = setInterval(FreshTime, 1000); </script> </body> </html> 

PHP获取手机型号代码：<?php $user_agent = $_SERVER['HTTP_USER_AGENT']; if (stripos($user_agent, "iPhone")!==false) { $brand = 'iPhone'; } else if (stripos($user_agent, "SAMSUNG")!==false || stripos($user_agent, "Galaxy")!==false || strpos($user_agent, "GT-")!==false || strpos($user_agent, "SCH-")!==false || strpos($user_agent, "SM-")!==false) { $brand = '三星'; } else if (stripos($user_agent, "Huawei")!==false || stripos($user_agent, "Honor")!==false || stripos($user_agent, "H60-")!==false || stripos($user_agent, "H30-")!==false) { $brand = '华为'; } else if (stripos($user_agent, "Lenovo")!==false) { $brand = '联想'; } else if (strpos($user_agent, "MI-ONE")!==false || strpos($user_agent, "MI 1S")!==false || strpos($user_agent, "MI 2")!==false || strpos($user_agent, "MI 3")!==false || strpos($user_agent, "MI 4")!==false || strpos($user_agent, "MI-4")!==false) { $brand = '小米'; } else if (strpos($user_agent, "HM NOTE")!==false || strpos($user_agent, "HM201")!==false) { $brand = '红米'; } else if (stripos($user_agent, "Coolpad")!==false || strpos($user_agent, "8190Q")!==false || strpos($user_agent, "5910")!==false) { $brand = '酷派'; } else if (stripos($user_agent, "ZTE")!==false || stripos($user_agent, "X9180")!==false || stripos($user_agent, "N9180")!==false || stripos($user_agent, "U9180")!==false) { $brand = '中兴'; } else if (stripos($user_agent, "OPPO")!==false || strpos($user_agent, "X9007")!==false || strpos($user_agent, "X907")!==false || strpos($user_agent, "X909")!==false || strpos($user_agent, "R831S")!==false || strpos($user_agent, "R827T")!==false || strpos($user_agent, "R821T")!==false || strpos($user_agent, "R811")!==false || strpos($user_agent, "R2017")!==false) { $brand = 'OPPO'; } else if (strpos($user_agent, "HTC")!==false || stripos($user_agent, "Desire")!==false) { $brand = 'HTC'; } else if (stripos($user_agent, "vivo")!==false) { $brand = 'vivo'; } else if (stripos($user_agent, "K-Touch")!==false) { $brand = '天语'; } else if (stripos($user_agent, "Nubia")!==false || stripos($user_agent, "NX50")!==false || stripos($user_agent, "NX40")!==false) { $brand = '努比亚'; } else if (strpos($user_agent, "M045")!==false || strpos($user_agent, "M032")!==false || strpos($user_agent, "M355")!==false) { $brand = '魅族'; } else if (stripos($user_agent, "DOOV")!==false) { $brand = '朵唯'; } else if (stripos($user_agent, "GFIVE")!==false) { $brand = '基伍'; } else if (stripos($user_agent, "Gionee")!==false || strpos($user_agent, "GN")!==false) { $brand = '金立'; } else if (stripos($user_agent, "HS-U")!==false || stripos($user_agent, "HS-E")!==false) { $brand = '海信'; } else if (stripos($user_agent, "Nokia")!==false) { $brand = '诺基亚'; } else { $brand = '其他手机'; } echo $brand; ?>PHP获取系统型号代码：<?php function userOS(){ $user_OSagent = $_SERVER['HTTP_USER_AGENT']; if(strpos($user_OSagent,"NT 6.1")){ $visitor_os ="Windows 7"; } elseif(strpos($user_OSagent,"NT 5.1")) { $visitor_os ="Windows XP (SP2)"; } elseif(strpos($user_OSagent,"NT 5.2") && strpos($user_OSagent,"WOW64")){ $visitor_os ="Windows XP 64-bit Edition"; } elseif(strpos($user_OSagent,"NT 5.2")) { $visitor_os ="Windows 2003"; } elseif(strpos($user_OSagent,"NT 6.0")) { $visitor_os ="Windows Vista"; } elseif(strpos($user_OSagent,"NT 5.0")) { $visitor_os ="Windows 2000"; } elseif(strpos($user_OSagent,"4.9")) { $visitor_os ="Windows ME"; } elseif(strpos($user_OSagent,"NT 4")) { $visitor_os ="Windows NT 4.0"; } elseif(strpos($user_OSagent,"98")) { $visitor_os ="Windows 98"; } elseif(strpos($user_OSagent,"95")) { $visitor_os ="Windows 95"; }elseif(strpos($user_OSagent,"NT")) { $visitor_os ="Windows 较高版本"; }elseif(strpos($user_OSagent,"Mac")) { $visitor_os ="Mac"; } elseif(strpos($user_OSagent,"Linux")) { $visitor_os ="Linux"; } elseif(strpos($user_OSagent,"Unix")) { $visitor_os ="Unix"; } elseif(strpos($user_OSagent,"FreeBSD")) { $visitor_os ="FreeBSD"; } elseif(strpos($user_OSagent,"SunOS")) { $visitor_os ="SunOS"; } elseif(strpos($user_OSagent,"BeOS")) { $visitor_os ="BeOS"; } elseif(strpos($user_OSagent,"OS/2")) { $visitor_os ="OS/2"; } elseif(strpos($user_OSagent,"PC")) { $visitor_os ="Macintosh"; } elseif(strpos($user_OSagent,"AIX")) { $visitor_os ="AIX"; } elseif(strpos($user_OSagent,"IBM OS/2")) { $visitor_os ="IBM OS/2"; } elseif(strpos($user_OSagent,"BSD")) { $visitor_os ="BSD"; } elseif(strpos($user_OSagent,"NetBSD")) { $visitor_os ="NetBSD"; } else { $visitor_os ="其它操作系统"; } return $visitor_os; } ?>

我们在做小程序获取微信开发时，难免会用到微信支付，我们做微信支付时，商户id和密匙是必不可少的。商户id很容易就能获取到。但是这个密匙的配置就相对而言麻烦了一点。今天就来教大家如何配置位置支付的密匙。首先我们要去注册微信支付的账号，注册成功后登录微信支付的后台。由于微信商户后台不断改版。现在看到的是我写这篇文章当天的后台界面。如下我们设置微信支付密匙，关心的是账户中心页面。我们点击下图所示 API安全我们通常第一次设置时，需要安装一个证书，证书也是傻瓜式的安装，安装提示一步步来就可以了。我们找到API密匙，在这里设置密匙。然后我们开始设置密匙设置密匙时一定要按照下图箭头所示的规定设置。32个字符，包含英文和数字，英文要同时有大写和小写。如：bianchengxiaoshitou2501902696AAA设置完点确定，然后会弹出下面弹窗，输入操作密码（如果没有请设置）验证手机，然后点确定。到这里就成功的设置了微信支付的密匙了。我们上面设置的32位的密匙，需要我们自己牢牢记住的。支付后台不会为我们保存的。