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微信JSSDK页面授权实现类PHP ssdb redis ssdb 命令 ssdb redis 比

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Freigeben： 2016-07-29 08:54:05
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微信页面授权–(JS-SDK使用权限签名算法)
使用方法：实例化此类，然后调用其中的getSignPackage()方法即可。
注意：其中涉及获取access_token和jsapi_ticket需要自己缓存，不能频繁获取！

<code><span><span><?php </span><span>/**
 * Author: helen
 * CreateTime: 2016/4/11 10:39
 * description: 微信页面授权--(JS-SDK使用权限签名算法)
 */</span><span><span>class</span><span>JSSDK</span>{</span><span>private</span><span>$appId</span>;
    <span>private</span><span>$appSecret</span>;

    <span>public</span><span><span>function</span><span>__construct</span><span>(<span>$appId</span>, <span>$appSecret</span>)</span>
    {</span><span>$this</span>->appId = <span>$appId</span>;
        <span>$this</span>->appSecret = <span>$appSecret</span>;
    }
    <span>/*
     * 获取access_token
     * (需要缓存，可利用数据库存储,不要频繁刷新获取)
     * http请求方式: GET  https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET
     * 接口请求参数
     *  参数       是否必须          说明
        grant_type  是   获取access_token填写client_credential
        appid       是   第三方用户唯一凭证
        secret      是   第三方用户唯一凭证密钥，即appsecret
     * 接口返回说明
     * {"access_token":"ACCESS_TOKEN","expires_in":7200}    access_token    获取到的凭证  expires_in  凭证有效时间，单位：秒
     * 接口错误说明
     * {"errcode":40013,"errmsg":"invalid appid"}
     * */</span><span>private</span><span><span>function</span><span>getAccessToken</span><span>()</span>{</span><span>$appId</span> = <span>$this</span>->appId;
        <span>$appSecret</span> = <span>$this</span>->appSecret;
        <span>$url</span> = <span>'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='</span>.<span>$appId</span>.<span>'&secret='</span>.<span>$appSecret</span>;
        <span>$res</span> = <span>$this</span>->api_request(<span>$url</span>);
        <span>if</span>(<span>isset</span>(<span>$res</span>->access_token)){
            <span>return</span><span>array</span>(
                <span>'errcode'</span>       =><span>0</span>,
                <span>'errmsg'</span>        =><span>'success'</span>,
                <span>'access_token'</span>  =><span>$res</span>->access_token,
                <span>'expires_in'</span>    =><span>$res</span>->expires_in
            );
        }<span>else</span>{
            <span>return</span><span>array</span>(
                <span>'errcode'</span>       =><span>$res</span>->errcode,
                <span>'errmsg'</span>        =><span>$res</span>->errmsg,
                <span>'access_token'</span>  =><span>null</span>,
                <span>'expires_in'</span>    =><span>null</span>
            );
        }
    }
    <span>/*
     * 获取jsapi_ticket
     * （有效期7200秒，开发者必须在自己的服务全局缓存jsapi_ticket）
     * 请求方式：https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=ACCESS_TOKEN&type=jsapi
     * 接口返回值：JSON
     * {
            "errcode":0,
            "errmsg":"ok",
            "ticket":"bxLdikRXVbTPdHSM05e5u5sUoXNKd8-41ZO3MhKoyN5OfkWITDGgnr2fwJ0m9E8NYzWKVZvdVtaUgWvsdshFKA",
            "expires_in":7200
        }
     * */</span><span>private</span><span><span>function</span><span>getJsApiTicket</span><span>()</span>{</span><span>$access_token_data</span> = <span>$this</span>->getAccessToken();
        <span>if</span>(<span>$access_token_data</span>[<span>'errcode'</span>]==<span>0</span>){
            <span>$access_token</span> = <span>$access_token_data</span>[<span>'access_token'</span>];
            <span>$url</span> = <span>'https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token='</span>.<span>$access_token</span>.<span>'&type=jsapi'</span>;
            <span>$res</span> = <span>$this</span>->api_request(<span>$url</span>);
            <span>if</span>(<span>$res</span>->errcode==<span>0</span>){
                <span>return</span><span>array</span>(
                    <span>'errcode'</span>     =><span>$res</span>->errcode,
                    <span>'errmsg'</span>      =><span>$res</span>->errmsg,
                    <span>'ticket'</span>      =><span>$res</span>->ticket,
                    <span>'expires_in'</span>  =><span>$res</span>->expires_in
                );
            }<span>else</span>{
                <span>return</span><span>array</span>(
                    <span>'errcode'</span>     =><span>$res</span>->errcode,
                    <span>'errmsg'</span>      =><span>$res</span>->errmsg,
                    <span>'ticket'</span>      =><span>null</span>,
                    <span>'expires_in'</span>  =><span>null</span>
                );
            }
        }<span>else</span>{
            <span>return</span><span>array</span>(
                <span>'errcode'</span>         =><span>$access_token_data</span>[<span>'errcode'</span>],
                <span>'errmsg'</span>          =><span>$access_token_data</span>[<span>'errmsg'</span>],
                <span>'ticket'</span>          =><span>null</span>,
                <span>'expires_in'</span>      =><span>null</span>
            );
        }
    }
    <span>/*
     * 签名算法
     * 签名生成规则如下：参与签名的字段包括noncestr（随机字符串）, 有效的jsapi_ticket, timestamp（时间戳）, url（当前网页的URL，不包含#及其后面部分） 。
     * 1、对所有待签名参数按照字段名的ASCII 码从小到大排序（字典序）后，
     * 2、使用URL键值对的格式（即key1=value1&key2=value2…）拼接成字符串string1。
     * 这里需要注意的是所有参数名均为小写字符。对string1作sha1加密，字段名和字段值都采用原始值，不进行URL 转义。
     * */</span><span>/*
     * 获取随机字符串
     * mt_rand() 使用 Mersenne Twister 算法返回随机整数。
     * mt_rand(min,max)如果没有提供可选参数 min 和 max，mt_rand() 返回 0 到 RAND_MAX 之间的伪随机数。
     * 想要 5 到 15（包括 5 和 15）之间的随机数，用 mt_rand(5, 15)。
     * 此函数rand()快四倍
     * */</span><span>/*
     * 1.签名用的noncestr和timestamp必须与wx.config中的nonceStr和timestamp相同。
     * 2.签名用的url必须是调用JS接口页面的完整URL。
     * 3.出于安全考虑，开发者必须在服务器端实现签名的逻辑。
     * 注意：
     * 确保你获取用来签名的url是动态获取的，动态页面可参见实例代码中php的实现方式。
     * 如果是html的静态页面在前端通过ajax将url传到后台签名，前端需要用js获取当前页面除去'#'hash部分的链接（可用location.href.split('#')[0]获取,而且需要encodeURIComponent），
     * 因为页面一旦分享，微信客户端会在你的链接末尾加入其它参数，如果不是动态获取当前链接，将导致分享后的页面签名失败。
     * */</span><span>public</span><span><span>function</span><span>getSignPackage</span><span>()</span>
    {</span><span>$jsapiTicket_data</span> = <span>$this</span>->getJsApiTicket();
        <span>$nonceStr</span> = <span>$this</span>->getNonceStr();
        <span>$timestamp</span> = time();
        <span>$url</span> = <span>$this</span>->getUrl();
        <span>if</span>(<span>$jsapiTicket_data</span>[<span>'errcode'</span>]==<span>0</span>){
            <span>$jsapiTicket</span> = <span>$jsapiTicket_data</span>[<span>'ticket'</span>];
            <span>// 这里参数的顺序要按照 key 值 ASCII 码升序排序</span><span>$string</span> = <span>"jsapi_ticket=$jsapiTicket&n/span>;
            <span>$signature</span> = sha1(<span>$string</span>);
            <span>return</span><span>array</span>(
                <span>"appId"</span>         => <span>$this</span>->appId,
                <span>"nonceStr"</span>      => <span>$nonceStr</span>,
                <span>"timestamp"</span>     => <span>$timestamp</span>,
                <span>"url"</span>           => <span>$url</span>,
                <span>"signature"</span>     => <span>$signature</span>,
                <span>"rawString"</span>     => <span>$string</span>,
                <span>"errcode"</span>       => <span>$jsapiTicket_data</span>[<span>'errcode'</span>],
                <span>"errmsg"</span>        => <span>$jsapiTicket_data</span>[<span>'errmsg'</span>]
            );
        }<span>else</span>{
            <span>return</span><span>array</span>(
                <span>"appId"</span>         => <span>$this</span>->appId,
                <span>"nonceStr"</span>      => <span>$nonceStr</span>,
                <span>"timestamp"</span>     => <span>$timestamp</span>,
                <span>"url"</span>           => <span>$url</span>,
                <span>"signature"</span>     => <span>null</span>,
                <span>"rawString"</span>     => <span>null</span>,
                <span>"errcode"</span>       => <span>$jsapiTicket_data</span>[<span>'errcode'</span>],
                <span>"errmsg"</span>        => <span>$jsapiTicket_data</span>[<span>'errmsg'</span>]
            );
        }
    }
    <span>/*
     * 获取nonceStr
     * */</span><span>private</span><span><span>function</span><span>getNonceStr</span><span>(<span>$length</span> = <span>16</span>)</span>
    {</span><span>$chars</span> = <span>"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"</span>;
        <span>$nonceStr</span> = <span>""</span>;
        <span>for</span> (<span>$i</span> = <span>0</span>; <span>$i</span> $length</span>; <span>$i</span>++) {
            <span>$nonceStr</span> .= substr(<span>$chars</span>, mt_rand(<span>0</span>, strlen(<span>$chars</span>) - <span>1</span>), <span>1</span>);
        }
        <span>return</span><span>$nonceStr</span>;
    }
    <span>/*
     * 获取url
     * url（当前网页的URL，不包含#及其后面部分）
     * */</span><span>private</span><span><span>function</span><span>getUrl</span><span>()</span>{</span><span>$protocol</span> = (!<span>empty</span>(<span>$_SERVER</span>[<span>'HTTPS'</span>]) && <span>$_SERVER</span>[<span>'HTTPS'</span>] !== <span>'off'</span> || <span>$_SERVER</span>[<span>'SERVER_PORT'</span>] == <span>443</span>) ? <span>"https://"</span> : <span>"http://"</span>;
        <span>$url</span> = <span>"$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"</span>;
        <span>return</span><span>$url</span>;
    }
    <span>/*
     * 微信API调用方法
     * */</span><span>private</span><span><span>function</span><span>api_request</span><span>(<span>$url</span>,<span>$data</span>=null)</span>{</span><span>//初始化cURL方法</span><span>$ch</span> = curl_init();
        <span>//设置cURL参数（基本参数）</span><span>$opts</span> = <span>array</span>(
            <span>//在局域网内访问https站点时需要设置以下两项，关闭ssl验证！</span><span>//此两项正式上线时需要更改（不检查和验证认证）</span>
            CURLOPT_SSL_VERIFYPEER => <span>false</span>,
            CURLOPT_SSL_VERIFYHOST => <span>false</span>,
            CURLOPT_TIMEOUT => <span>500</span>,
            CURLOPT_RETURNTRANSFER => <span>true</span>,
            CURLOPT_URL => <span>$url</span>,
        );
        curl_setopt_array(<span>$ch</span>, <span>$opts</span>);
        <span>//post请求参数</span><span>if</span> (!<span>empty</span>(<span>$data</span>)) {
            curl_setopt(<span>$ch</span>, CURLOPT_POST, <span>true</span>);
            curl_setopt(<span>$ch</span>, CURLOPT_POSTFIELDS, <span>$data</span>);
        }
        <span>//执行cURL操作</span><span>$output</span> = curl_exec(<span>$ch</span>);
        <span>if</span> (curl_errno(<span>$ch</span>)) {    <span>//cURL操作发生错误处理。</span>
            var_dump(curl_error(<span>$ch</span>));
            <span>die</span>;
        }
        <span>//关闭cURL</span>
        curl_close(<span>$ch</span>);
        <span>$res</span> = json_decode(<span>$output</span>);
        <span>return</span> (<span>$res</span>);   <span>//返回json数据</span>
    }

}
</span></span></code>
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以上就介绍了微信JSSDK页面授权实现类PHP，包括了php,ssd方面的内容，希望对PHP教程有兴趣的朋友有所帮助。

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