php 生成订单号201807205598981

php版

 /**
     * 生成唯一订单号
     */
    public function build_order_no()
    {
        $no = date('Ymd').substr(implode(NULL, array_map('ord', str_split(substr(uniqid(), 7, 13), 1))), 0, 8);
        //检测是否存在
        $db = M('Order');
        $info = $db->where(array('number'=>$no))->find();
        (!empty($info)) && $no = $this->build_order_no();
        return $no;

    }

js版

<!DOCTYPE html>
<html>
	<head>
	<title>支付宝电脑网站支付</title>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style>
    *{
        margin:0;
        padding:0;
    }
    ul,ol{
        list-style:none;
    }
    body{
        font-family: "Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;
    }
    .tab-head{
        margin-left:120px;
        margin-bottom:10px;
    }
    .tab-content{
        clear:left;
        display: none;
    }
    h2{
        border-bottom: solid #02aaf1 2px;
        width: 200px;
        height: 25px;
        margin: 0;
        float: left;
        text-align: center;
        font-size: 16px;
    }
    .selected{
        color: #FFFFFF;
        background-color: #02aaf1;
    }
    .show{
        clear:left;
        display: block;
    }
    .hidden{
        display:none;
    }
    .new-btn-login-sp{
        padding: 1px;
        display: inline-block;
        width: 75%;
    }
    .new-btn-login {
        background-color: #02aaf1;
        color: #FFFFFF;
        font-weight: bold;
        border: none;
        width: 100%;
        height: 30px;
        border-radius: 5px;
        font-size: 16px;
    }
    #main{
        width:100%;
        margin:0 auto;
        font-size:14px;
    }
    .red-star{
        color:#f00;
        width:10px;
        display:inline-block;
    }
    .null-star{
        color:#fff;
    }
    .content{
        margin-top:5px;
    }
    .content dt{
        width:100px;
        display:inline-block;
        float: left;
        margin-left: 20px;
        color: #666;
        font-size: 13px;
        margin-top: 8px;
    }
    .content dd{
        margin-left:120px;
        margin-bottom:5px;
    }
    .content dd input {
        width: 85%;
        height: 28px;
        border: 0;
        -webkit-border-radius: 0;
        -webkit-appearance: none;
    }
    #foot{
        margin-top:10px;
        position: absolute;
        bottom: 15px;
        width: 100%;
    }
    .foot-ul{
        width: 100%;
    }
    .foot-ul li {
        width: 100%;
        text-align:center;
        color: #666;
    }
    .note-help {
        color: #999999;
        font-size: 12px;
        line-height: 130%;
        margin-top: 5px;
        width: 100%;
        display: block;
    }
    #btn-dd{
        margin: 20px;
        text-align: center;
    }
    .foot-ul{
        width: 100%;
    }
    .one_line{
        display: block;
        height: 1px;
        border: 0;
        border-top: 1px solid #eeeeee;
        width: 100%;
        margin-left: 20px;
    }
    .am-header {
        display: -webkit-box;
        display: -ms-flexbox;
        display: box;
        width: 100%;
        position: relative;
        padding: 7px 0;
        -webkit-box-sizing: border-box;
        -ms-box-sizing: border-box;
        box-sizing: border-box;
        background: #1D222D;
        height: 50px;
        text-align: center;
        -webkit-box-pack: center;
        -ms-flex-pack: center;
        box-pack: center;
        -webkit-box-align: center;
        -ms-flex-align: center;
        box-align: center;
    }
    .am-header h1 {
        -webkit-box-flex: 1;
        -ms-flex: 1;
        box-flex: 1;
        line-height: 18px;
        text-align: center;
        font-size: 18px;
        font-weight: 300;
        color: #fff;
    }
</style>
</head>
<body text=#000000 bgColor="#ffffff" leftMargin=0 topMargin=4>
<header class="am-header">
        <h1>支付宝电脑网站支付体验入口页</h1>
</header>
<div id="main">
    <div id="tabhead" class="tab-head">
        <h2 id="tab1" class="selected" name="tab">付 款</h2>
    </div>

        <form name=alipayment action="{:url('payment')}" method=post target="_blank">
            <div id="body1" class="show" name="divcontent">
                <dl class="content">
                    <dt>商户订单号
：</dt>
                    <dd>
                        <input id="WIDout_trade_no" name="WIDout_trade_no" />{$number}
                    </dd>
                    <hr class="one_line">
                    <dt>订单名称
：</dt>
                    <dd>
                        <input id="WIDsubject" name="WIDsubject" />
                    </dd>
                    <hr class="one_line">
                    <dt>付款金额
：</dt>
                    <dd>
                        <input id="WIDtotal_amount" name="WIDtotal_amount" />
                    </dd>
                    <hr class="one_line">
                    <dt>商品描述：</dt>
                    <dd>
                        <input id="WIDbody" name="WIDbody" />
                    </dd>
                    <hr class="one_line">
                    <dt></dt>
                    <dd id="btn-dd">
                        <span class="new-btn-login-sp">
                            <button class="new-btn-login" name="pay_type" value="alipay" type="submit" style="text-align:center;">付 款</button>
                        </span>
                        <span class="note-help">如果您点击“付款”按钮，即表示您同意该次的执行操作。</span>
                    </dd>
                </dl>
            </div>
		</form>

        <div id="foot">
			<ul class="foot-ul">
				<li>
					支付宝版权所有 2015-2018 ALIPAY.COM
				</li>
			</ul>
		</div>
	</div>
</body>
<script language="javascript">
    var tabs = document.getElementsByName('tab');
    var contents = document.getElementsByName('divcontent');

    (function changeTab(tab) {
        for(var i = 0, len = tabs.length; i < len; i++) {
            tabs[i].onmouseover = showTab;
        }
    })();

    function showTab() {
        for(var i = 0, len = tabs.length; i < len; i++) {
            if(tabs[i] === this) {
                tabs[i].className = 'selected';
                contents[i].className = 'show';
            } else {
                tabs[i].className = '';
                contents[i].className = 'tab-content';
            }
        }
    }

	function GetDateNow() {
		var vNow = new Date();
		var sNow = "";
		sNow += String(vNow.getFullYear());
		sNow += String(vNow.getMonth() + 1);
		sNow += String(vNow.getDate());
		sNow += String(vNow.getHours());
		sNow += String(vNow.getMinutes());
		sNow += String(vNow.getSeconds());
		sNow += String(vNow.getMilliseconds());
		document.getElementById("WIDout_trade_no").value =  sNow;
		document.getElementById("WIDsubject").value = "测试";
		document.getElementById("WIDtotal_amount").value = "0.01";
	}
	GetDateNow();
</script>