php获取小程序码的实现代码(B类接口)

效果图

生成小程序码的php代码

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									public function qrcode(){

									    $member_id = session('id');

									    if(empty($member_id)) $this->error('请先登录');

									    //推广二维码

									    $member = model('member')->where('id',$member_id)->find();

									    if($member['is_share'] && $member['share_qrcode']){

									      $litpic  = $member['share_qrcode'];

									    }else{

									      header('content-type:image/jpg');//加载速度快

									      // 生成小程序码

									      $wechatobj =  new \wechat();//这是个类 这里有小程序appid和密码

									      $url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=".$wechatobj->getaccesstoken();

									      $page = 'pages/index/index';

									      $scene = 'share_id='.$member_id;

									      $path = './upload/qrcode/'.$member_id.'.jpg';

									    $postdata = array();

									    $postdata['page'] = $page;

									      $postdata['scene'] = $scene;

									      $data = json_encode($postdata);

									      $result = $this->api_notice_increment($url,$data);

									      $image = 'data:image/jpg;base64,' . base64_encode($result);

									      $other_result = $result;

									      $file = fopen($path,"w");//打开文件准备写入

									    fwrite($file,$other_result);//写入

									    fclose($file);//关闭

									      //return $result;

									      $litpic  = $path;

									      $litpic = ltrim($litpic,'.');

									      //写入数据库

									      $member->save(['share_qrcode'=>$litpic,'is_share'=>1]);

									    }

									    //推广人数

									    $path_member = model('member')->where('path',$member_id)->field('id,name,litpic,add_time')->select();

									    $path  = [];

									    foreach($path_member as $v){

									      $v['add_time'] = date('y-m-d h:i:s',$v['add_time']);

									      $path[]   = $v;

									    }

									    $data  = [

									      'litpic'  => $litpic,

									      'path'   => $path,

									    ];

									    return json($data);

									  }

									  public function api_notice_increment($url,$data){

									    //return $data;

									    $curl = curl_init(); // 启动一个curl会话

									    //$header = "accept-charset: utf-8";

									    curl_setopt($curl, curlopt_url, $url); // 要访问的地址

									    curl_setopt($curl, curlopt_ssl_verifypeer, false); // 对认证证书来源的检测

									    curl_setopt($curl, curlopt_ssl_verifyhost, false); // 从证书中检查ssl加密算法是否存在

									    curl_setopt($curl, curlopt_httpheader, array('expect:')); //解决数据包大不能提交

									    curl_setopt($curl, curlopt_followlocation, 1); // 使用自动跳转

									    curl_setopt($curl, curlopt_autoreferer, 1); // 自动设置referer

									    curl_setopt($curl, curlopt_post, 1); // 发送一个常规的post请求

									    curl_setopt($curl, curlopt_postfields, $data); // post提交的数据包

									    curl_setopt($curl, curlopt_timeout, 30); // 设置超时限制防止死循

									    curl_setopt($curl, curlopt_header, 0); // 显示返回的header区域内容

									    curl_setopt($curl, curlopt_returntransfer, 1); // 获取的信息以文件流的形式返回

									    $tmpinfo = curl_exec($curl); // 执行操作

									    if (curl_errno($curl)) {

									      echo 'errno'.curl_error($curl);

									    }

									    curl_close($curl); // 关键curl会话

									    return $tmpinfo; // 返回数据

									  }

									function api_notice_increment($url,$data)

									{

									  $curl = curl_init();

									  $a = strlen($data);

									  $header = array("content-type: application/json; charset=utf-8","content-length: $a");

									  curl_setopt($curl, curlopt_url, $url);

									  curl_setopt($curl, curlopt_ssl_verifypeer, false);

									  curl_setopt($curl, curlopt_ssl_verifyhost, false);

									  curl_setopt($curl,curlopt_post,1);

									  curl_setopt($curl,curlopt_postfields,$data);

									  curl_setopt($curl, curlopt_header, 0);

									  curl_setopt($curl, curlopt_returntransfer, 1);

									  $res = curl_exec($curl);

									  curl_close($curl);

									  return $res;

									}

小程序端获取二维码中带的参数

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									/**

									   * 生命周期函数--监听页面加载

									   */

									  onload: function(option) {

									    console.log(option)

									    if(option.id){

									     this.setdata({ id: option.id });

									     this.data.business_id = option.id;

									     this.loaddata(option.id);

									    }

									    //接受二维码扫码并获取二维码中的参数

									    if (option.scene){

									     const ids = decodeuricomponent(option.scene).split('=')[1];

									     console.log("ids", ids);

									     this.setdata({ id: ids });

									     this.data.business_id = ids;

									     this.loaddata(ids);

									    }

									  },

补充上wechat类

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									<?php

									class wechat

									{

									  // +----------------------------------------------------------------------

									  // |    参数

									  // +----------------------------------------------------------------------

									  public $table;

									  public $where_web;

									  public $wechatid;

									  public $wechattoken;

									  public $wechatappid;

									  public $wechatappsecret;

									  public $wechatmchid;

									  public $wechatprivatekey;

									  public $wechataccesstoken;

									  public $wechataccesstokentime;

									  public $wechatjsapiticket;

									  public $wechatjsapitickettime;

									// +----------------------------------------------------------------------

									// |  自动加载

									// +----------------------------------------------------------------------

									  public function __construct() {

									    //测试

									    /*$this->wechatid            = 1;

									    $this->wechatappid          = 'wx1161dbcdd18c52c2';

									    $this->wechatappsecret        = 'f373410716a198feb462182c69facb8a';

									    $this->wechatmchid          = 1493574822;

									    $this->wechatprivatekey        = md5(123);

									    */

									    //客户appid

									    $this->wechatid            = 1;

									    $this->wechatappid          = 'your appid';

									    $this->wechatappsecret        = 'your appsecret';

									    $this->wechatmchid          = 商户号;

									    $this->wechatprivatekey        = '私钥';

									    /*

									      $this->wechattoken          = $wechatinfo['wechat_token'];

									      $this->wechataccesstoken       = $wechatinfo['wechat_access_token'];

									      $this->wechataccesstokentime     = $wechatinfo['wechat_access_token_time'];

									      $this->wechatjsapiticket       = $wechatinfo['wechat_jsapi_ticket'];

									      $this->wechatjsapitickettime     = $wechatinfo['wechat_jsapi_ticket_time'];

									    */

									  }

									// +----------------------------------------------------------------------

									// |    获取access_token

									// +----------------------------------------------------------------------

									  public function getaccesstoken(){

									    $url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$this->wechatappid.'&secret='.$this->wechatappsecret;

									    $data = $this -> curlget($url);

									    $access_token = $data['access_token'];

									    $expires_in  = $data['expires_in'];

									    $save['wechat_access_token']    = $access_token;

									    $save['wechat_access_token_time']  = ($expires_in+time())-360;

									    $this  ->  wechataccesstoken    = $save['wechat_access_token'];

									    $this  ->  wechataccesstokentime  = $save['wechat_access_token_time'];

									    return $access_token;

									  }

									  // +----------------------------------------------------------------------

									  // |    获取access_token

									  // +----------------------------------------------------------------------

									  public function getjsapiticket(){

									    $url = 'https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token='.$this -> getaccesstoken().'&type=jsapi';

									    $data = $this -> curlget($url);

									    $jsapi_ticket = $data['ticket'];

									    $expires_in  = $data['expires_in'];

									    $save['wechat_jsapi_ticket']    = $jsapi_ticket;

									    $save['wechat_jsapi_ticket_time']  = ($expires_in+time())-360;

									    $this->wechatjsapiticket    = $save['wechat_jsapi_ticket'];

									    $this->wechatjsapitickettime  = $save['wechat_jsapi_ticket_time'];

									    return $jsapi_ticket;

									  }

									  // +----------------------------------------------------------------------

									  // |    获取signature

									  // +----------------------------------------------------------------------

									  public function getsignature($appid,$timestamp,$noncestr,$url)

									  {

									    $jsapi_ticket = $this -> getjsapiticket();

									    $string1 = "jsapi_ticket={$jsapi_ticket}&noncestr={$noncestr}&timestamp={$timestamp}&url={$url}";

									    $signature = sha1($string1);

									    return $signature;

									  }

									  // +----------------------------------------------------------------------

									  // |    获取createnoncestr

									  // +----------------------------------------------------------------------

									  public function getcreatenoncestr($length = 16) {

									    $chars = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789";

									    $str = "";

									    for ($i = 0; $i < $length; $i++) {

									     $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);

									    }

									    return $str;

									  }

									  // +----------------------------------------------------------------------

									  // |    下载本地

									  // +----------------------------------------------------------------------

									  public function curldownload($url,$name)

									  {

									    $ch = curl_init ();

									    curl_setopt ( $ch, curlopt_customrequest, 'get' );

									    curl_setopt ( $ch, curlopt_ssl_verifypeer, false );

									    curl_setopt ( $ch, curlopt_url, $url );

									    ob_start ();

									    curl_exec ( $ch );

									    $return_content = ob_get_contents ();

									    ob_end_clean ();

									    $return_code = curl_getinfo ( $ch, curlinfo_http_code );

									    $filename = "uploads/card/{$name}";

									    $fp= @fopen($filename,"a");

									    fwrite($fp,$return_content);

									    // 关闭url请求

									    curl_close($ch);

									    $url = "/uploads/card/{$name}";

									    return "{$url}";

									  }

									  // +----------------------------------------------------------------------

									  // |    get请求

									  // +----------------------------------------------------------------------

									  public function curlget($url)

									  {

									      $ch = curl_init();

									      curl_setopt($ch, curlopt_url, $url);

									      curl_setopt($ch, curlopt_ssl_verifypeer, false);

									      curl_setopt($ch, curlopt_ssl_verifyhost, false);

									      curl_setopt($ch, curlopt_returntransfer, 1);

									      $output = curl_exec($ch);

									      curl_close($ch);

									      $jsoninfo = json_decode($output, true);

									      return $jsoninfo;

									  }

									  // +----------------------------------------------------------------------

									  // |    post ssl请求

									  // +----------------------------------------------------------------------

									  public function curlpostssl($url, $vars, $second=30,$aheader=array()){

									    $ch = curl_init();

									    //超时时间

									    curl_setopt($ch,curlopt_timeout,$second);

									    curl_setopt($ch,curlopt_returntransfer, 1);

									    //这里设置代理，如果有的话

									    curl_setopt($ch,curlopt_url,$url);

									    curl_setopt($ch,curlopt_ssl_verifypeer,false);

									    curl_setopt($ch,curlopt_ssl_verifyhost,false);

									    //curl_setopt($ch,curlopt_sslcerttype,'pem');

									    curl_setopt($ch,curlopt_sslcert,getcwd().'/cert/apiclient_cert.pem');

									    //curl_setopt($ch,curlopt_sslkeytype,'pem');

									    curl_setopt($ch,curlopt_sslkey,getcwd().'/cert/apiclient_key.pem');

									    if( count($aheader) >= 1 ){

									      curl_setopt($ch, curlopt_httpheader, $aheader);

									    }

									    curl_setopt($ch,curlopt_post, 1);

									    curl_setopt($ch,curlopt_postfields,$vars);

									    $data = curl_exec($ch);

									    if($data){

									      curl_close($ch);

									      return $data;

									    } else {

									      $error = curl_errno($ch);

									      echo "call faild, errorcode:$error\n";

									      curl_close($ch);

									      return false;

									    }

									  }

									  // +----------------------------------------------------------------------

									  // | 发送退款

									  //  退款单号 out_trade_no

									  //  交易金额 total_fee

									  //  退款金额 refund_fee

									  // +----------------------------------------------------------------------

									  public function refund($out_trade_no,$total_fee,$refund_fee){

									    $arr['appid']      =  $this->wechatappid;

									    $arr['mch_id']     =  $this->wechatmchid;

									    $arr['nonce_str']    =  $this->getnoncestr();

									    $arr['out_trade_no']  =  $out_trade_no;

									    $arr['out_refund_no']  =  $this->getnoncestr();

									    $arr['total_fee']    =  $total_fee;

									    $arr['refund_fee']   =  $refund_fee;

									    $arr['sign']      =  $this->makesign($arr);

									    //将统一下单数组 转换xml

									    $xml            =  $this->toxml($arr);

									    //post xml 到微信退款接口

									    $url  =  "https://api.mch.weixin.qq.com/secapi/pay/refund";;//微信退款地址，post请求

									    $ch=curl_init();

									    //需要获取的url地址，也可以在 curl_init() 函数中设置。

									    curl_setopt($ch,curlopt_url,$url);

									    //启用时会将头文件的信息作为数据流输出。

									    //curl_setopt($ch,curlopt_header,1);

									    //将 curl_exec() 获取的信息以文件流的形式返回，而不是直接输出。

									    curl_setopt($ch,curlopt_returntransfer,1);

									    //证书检查

									    curl_setopt($ch,curlopt_ssl_verifypeer,false);

									    //证书的类型。支持的格式有"pem" (默认值), "der"和"eng"。

									    curl_setopt($ch,curlopt_sslcerttype,'pem');

									    //一个包含pem格式证书的文件名。

									    curl_setopt($ch,curlopt_sslcert,gen.'/cert/apiclient_cert.pem');

									    curl_setopt($ch,curlopt_sslcerttype,'pem');

									    curl_setopt($ch,curlopt_timeout,30);

									    //包含ssl私钥的文件名。

									    curl_setopt($ch,curlopt_sslkey,gen.'/cert/apiclient_key.pem');

									    curl_setopt($ch,curlopt_sslcerttype,'pem');

									    //一个保存着1个或多个用来让服务端验证的证书的文件名。这个参数仅仅在和 curlopt_ssl_verifypeer 一起使用时才有意义。 .

									    // curl_setopt($ch,curlopt_cainfo,getcwd().'/cert/rootca.pem');

									    curl_setopt($ch,curlopt_post,1);

									    curl_setopt($ch,curlopt_postfields,$xml);

									    $data=curl_exec($ch);

									    if($data){

									      curl_close($ch);

									      $data_arr = json_decode(json_encode(simplexml_load_string($data, 'simplexmlelement', libxml_nocdata)), true);

									      return $data_arr;

									    }else{

									      $error =  curl_errno($ch);

									      return "curl 错误:".$error;

									    }

									  }

									  // +----------------------------------------------------------------------

									  // | 企业付款

									  //  退款单号 out_trade_no

									  //  交易金额 total_fee

									  //  退款金额 refund_fee

									  // +----------------------------------------------------------------------

									  public function payment($partner_trade_no,$openid,$amount,$desc){

									    // 获取

									    $arr['mch_appid']      =  $this->wechatappid;

									    $arr['mchid']        =  $this->wechatmchid;

									    $arr['nonce_str']      =  $this->getnoncestr();

									    $arr['partner_trade_no']  =  $partner_trade_no;

									    $arr['openid']       =  $openid;

									    $arr['check_name']     =  "no_check";

									    $arr['amount']       =  $amount*100;

									    $arr['desc']        =  $desc;

									    $arr['spbill_create_ip']  =  request()->ip();

									    $arr['sign']        =  $this->makesign($arr);

									    //将统一下单数组 转换xml

									    $xml            =  $this->toxml($arr);

									    //post xml 到微信退款接口

									    $url  =  "https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers";//微信退款地址，post请求

									    $ch=curl_init();

									    //需要获取的url地址，也可以在 curl_init() 函数中设置。

									    curl_setopt($ch,curlopt_url,$url);

									    //启用时会将头文件的信息作为数据流输出。

									    //curl_setopt($ch,curlopt_header,1);

									    //将 curl_exec() 获取的信息以文件流的形式返回，而不是直接输出。

									    curl_setopt($ch,curlopt_returntransfer,1);

									    //证书检查

									    curl_setopt($ch,curlopt_ssl_verifypeer,false);

									    //证书的类型。支持的格式有"pem" (默认值), "der"和"eng"。

									    curl_setopt($ch,curlopt_sslcerttype,'pem');

									    //一个包含pem格式证书的文件名。

									    curl_setopt($ch,curlopt_sslcert,gen.'/cert/apiclient_cert.pem');

									    curl_setopt($ch,curlopt_sslcerttype,'pem');

									    curl_setopt($ch,curlopt_timeout,30);

									    //包含ssl私钥的文件名。

									    curl_setopt($ch,curlopt_sslkey,gen.'/cert/apiclient_key.pem');

									    curl_setopt($ch,curlopt_sslcerttype,'pem');

									    //一个保存着1个或多个用来让服务端验证的证书的文件名。这个参数仅仅在和 curlopt_ssl_verifypeer 一起使用时才有意义。 .

									    // curl_setopt($ch,curlopt_cainfo,getcwd().'/cert/rootca.pem');

									    curl_setopt($ch,curlopt_post,1);

									    curl_setopt($ch,curlopt_postfields,$xml);

									    $data=curl_exec($ch);

									    if($data){

									      curl_close($ch);

									      $data_arr = json_decode(json_encode(simplexml_load_string($data, 'simplexmlelement', libxml_nocdata)), true);

									      return $data_arr;

									    }else{

									      $error =  curl_errno($ch);

									      return "curl 错误:".$error;

									    }

									  }

									  // +----------------------------------------------------------------------

									  // |    post请求

									  // +----------------------------------------------------------------------

									  public function curlpost($url,$post_data)

									  {

									    $ch = curl_init();

									    curl_setopt($ch, curlopt_url, $url);

									    curl_setopt($ch, curlopt_ssl_verifypeer, false);

									    curl_setopt($ch, curlopt_ssl_verifyhost, false);

									    if (!empty($post_data)){

									      curl_setopt($ch, curlopt_post, 1);

									      curl_setopt($ch, curlopt_postfields, $post_data);

									    }

									    curl_setopt($ch, curlopt_returntransfer, 1);

									    $output = curl_exec($ch);

									    return $output;

									  }

									  // +----------------------------------------------------------------------

									  // |    齐力短信

									  // +----------------------------------------------------------------------

									  public function message($mobile){

									    $info  =  m('web')

									        ->  find();

									    $post_data = array();

									    $post_data['userid']  =  $info['message_id'];

									    $post_data['account']  =  $info['message_account'];

									    $post_data['password'] =  $info['message_password'];

									    $code = rand(1111,9999);

									    session('code',$code);

									    $post_data['content'] =   $info['message_autograph'].'您的验证码是：'.$code.' 请务必保管好,以免泄露';

									    $post_data['mobile'] = $mobile;

									    $post_data['sendtime'] = date('y-m-d');

									    $url='http://pt.sdqlweb.com/sms.aspx?action=send';

									    $o='';

									    foreach ($post_data as $k=>$v)

									    {

									    $o.="$k=".urlencode($v).'&';

									    }

									    $post_data=substr($o,0,-1);

									    $ch = curl_init();

									    curl_setopt($ch, curlopt_ssl_verifypeer, false);

									    curl_setopt($ch, curlopt_ssl_verifyhost, false);

									    curl_setopt($ch, curlopt_post, 1);

									    curl_setopt($ch, curlopt_url,$url);

									    curl_setopt($ch, curlopt_postfields, $post_data);

									    curl_setopt($ch, curlopt_returntransfer, 1);

									    $data = curl_exec($ch);

									    $data = json_decode(json_encode(simplexml_load_string($data, 'simplexmlelement', libxml_nocdata)), true);

									    curl_close($ch);

									    return $data;

									  }

									  // +----------------------------------------------------------------------

									  // |    以post方式提交xml到对应的接口url

									  // +----------------------------------------------------------------------

									  public function postxmlcurl($xml, $url, $usecert = false, $second = 30)

									  {

									    $ch = curl_init();

									    //设置超时

									    curl_setopt($ch, curlopt_timeout, $second);

									    curl_setopt($ch,curlopt_url, $url);

									    curl_setopt($ch,curlopt_ssl_verifypeer,false);

									    curl_setopt($ch,curlopt_ssl_verifyhost,2);//严格校验

									    //设置header

									    curl_setopt($ch, curlopt_header, false);

									    //要求结果为字符串且输出到屏幕上

									    curl_setopt($ch, curlopt_returntransfer, true);

									    //post提交方式

									    curl_setopt($ch, curlopt_post, true);

									    curl_setopt($ch, curlopt_postfields, $xml);

									    //运行curl

									    $data = curl_exec($ch);

									    //返回结果

									    if($data){

									      curl_close($ch);

									      return $data;

									    } else {

									      $error = curl_errno($ch);

									      curl_close($ch);

									    }

									  }

									  // +----------------------------------------------------------------------

									  // |    输出xml字符

									  // +----------------------------------------------------------------------

									  public function toxml($array)

									  {

									    if(!is_array($array)

									      || count($array) <= 0)

									    {

									      throw new wxpayexception("数组数据异常！");

									    }

									    $xml = "<xml>";

									    foreach ($array as $key=>$val)

									    {

									      if (is_numeric($val)){

									        $xml.="<".$key.">".$val."</".$key.">";

									      }else{

									        $xml.="<".$key."><![cdata[".$val."]]></".$key.">";

									      }

									    }

									    $xml.="</xml>";

									    return $xml;

									  }

									  // +----------------------------------------------------------------------

									  // |    获取微信ras公钥

									  // +----------------------------------------------------------------------

									  public function get_pub_key(){

									    $url        =  "https://fraud.mch.weixin.qq.com/risk/getpublickey";

									    $arr['mch_id']   =  $this->wechatmchid;

									    $arr['nonce_str']  =  $this->getnoncestr();

									    $arr['sign_type']  =  'md5';

									    $arr['sign']    =  $this->makesign($arr);

									    $xml        =  $this->toxml($arr);

									    $ch =  curl_init();

									    curl_setopt($ch,curlopt_url,$url);

									    curl_setopt($ch,curlopt_returntransfer,1);

									    curl_setopt($ch,curlopt_ssl_verifypeer,1);

									    curl_setopt($ch,curlopt_sslcerttype,'pem');

									    curl_setopt($ch,curlopt_sslcert,getcwd().'/cert/apiclient_cert.pem');

									    curl_setopt($ch,curlopt_sslcerttype,'pem');

									    curl_setopt($ch,curlopt_sslkey,getcwd().'/cert/apiclient_key.pem');

									    curl_setopt($ch,curlopt_sslcerttype,'pem');

									    curl_setopt($ch,curlopt_cainfo,getcwd().'/cert/rootca.pem');

									    curl_setopt($ch,curlopt_post,1);

									    curl_setopt($ch,curlopt_postfields,$xml);

									    $data  =  $this->fromxml(curl_exec($ch));

									    //要创建的两个文件

									    $txtfilename = "./cert/public.pem";

									    //以读写方式打写指定文件，如果文件不存则创建

									    if( ($txtres=fopen ($txtfilename,"w+")) === false){

									      echo("创建可写文件：".$txtfilename."失败");

									      exit();

									    }

									      echo ("创建可写文件".$txtfilename."成功！</br>");

									      $strconents =  $data['pub_key'];//要 写进文件的内容

									    if(!fwrite ($txtres,$strconents)){ //将信息写入文件

									      echo ("尝试向文件".$txtfilename."写入".$strconents."失败！");

									      fclose($txtres);

									      exit();

									    }

									      echo ("尝试向文件".$txtfilename."写入".$strconents."成功！");

									      fclose ($txtres); //关闭指针

									  }

									  // +----------------------------------------------------------------------

									  // |    将xml转为array

									  // +----------------------------------------------------------------------

									  public function fromxml($xml)

									  {

									    //禁止引用外部xml实体

									    libxml_disable_entity_loader(true);

									    $this->values = json_decode(json_encode(simplexml_load_string($xml, 'simplexmlelement', libxml_nocdata)), true);

									    return $this->values;

									  }

									  // +----------------------------------------------------------------------

									  // |    微信银行卡编码

									  // +----------------------------------------------------------------------

									  public function cardcode($card_name)

									  {

									    $arr  =  array(

									      '工商银行'=>1002,

									      '农业银行'=>1005,

									      '中国银行'=>1026,

									      '建设银行'=>1003,

									      '招商银行'=>1001,

									      '邮储银行'=>1066,

									      '交通银行'=>1020,

									      '浦发银行'=>1004,

									      '民生银行'=>1006,

									      '兴业银行'=>1009,

									      '平安银行'=>1010,

									      '中信银行'=>1021,

									      '华夏银行'=>1025,

									      '广发银行'=>1027,

									      '光大银行'=>1022,

									      '北京银行'=>1032,

									      '宁波银行'=>1056

									    );

									    foreach($arr as $k=>$v){

									      if($k == $card_name){

									        return $v;

									      }

									    }

									  }

									  // +----------------------------------------------------------------------

									  // |    格式化参数格式化成url参数

									  // +----------------------------------------------------------------------

									  public function tourlparams($array)

									  {

									    $buff = "";

									    foreach ($array as $k => $v)

									    {

									      if($k != "sign" && $v != "" && !is_array($v)){

									        $buff .= $k . "=" . $v . "&";

									      }

									    }

									    $buff = trim($buff, "&");

									    return $buff;

									  }

									  // +----------------------------------------------------------------------

									  // |    生成签名 本函数不覆盖sign成员变量，如要设置签名需要调用setsign方法赋值

									  // +----------------------------------------------------------------------

									  public function makesign($array)

									  {

									    //签名步骤一：按字典序排序参数

									    ksort($array);

									    $string =  $this->tourlparams($array);

									    //签名步骤二：在string后加入key

									    $string =  $string."&key=".$this->wechatprivatekey;

									    //签名步骤三：md5加密

									    $string =  md5($string);

									    //签名步骤四：所有字符转为大写

									    $string =  strtoupper($string);

									    return $string;

									  }

									  // +----------------------------------------------------------------------

									  // |    产生的随机字符串

									  // +----------------------------------------------------------------------

									  public function getnoncestr($length = 32)

									  {

									    $chars = "abcdefghijklmnopqrstuvwxyz0123456789";

									    $str ="";

									    for ( $i = 0; $i < $length; $i++ ) {

									      $str .= substr($chars, mt_rand(0, strlen($chars)-1), 1);

									    }

									    return $str;

									  }

									  // +----------------------------------------------------------------------

									  // |    打印log日志

									  // +----------------------------------------------------------------------

									  public function save_log($msg){

									    error_log(date("y-m-d h:i:s")."\r\n".print_r($msg,1)."\r\n \r\n \r\n ",3,'./error.log');

									  }

									  // +----------------------------------------------------------------------

									  // |    将图片上传至微信服务器

									  // +----------------------------------------------------------------------

									  public function curlimg($images){

									    $url    =  "https://api.weixin.qq.com/cgi-bin/material/add_material?access_token=".$this->getaccesstoken()."&type=image";

									    $ch1    =  curl_init ();

									    $timeout  =  5;

									    $real_path =  "{$_server['document_root']}{$images}";

									    $data= array("media"=>"@{$real_path}",'form-data'=>$file_info);

									    curl_setopt ( $ch1, curlopt_url, $url );

									    curl_setopt ( $ch1, curlopt_post, 1 );

									    curl_setopt ( $ch1, curlopt_returntransfer, 1 );

									    curl_setopt ( $ch1, curlopt_connecttimeout, $timeout );

									    curl_setopt ( $ch1, curlopt_ssl_verifypeer, false );

									    curl_setopt ( $ch1, curlopt_ssl_verifyhost, false );

									    curl_setopt ( $ch1, curlopt_postfields, $data );

									    $result = curl_exec ( $ch1 );

									    curl_close ( $ch1 );

									    if(curl_errno()==0){

									      $result=json_decode($result,true);

									      return $result;

									    }else {

									      return false;

									    }

									  }

									  // +----------------------------------------------------------------------

									  // |    将文章转换为微信文章

									  // +----------------------------------------------------------------------

									  public function wechattext($content){

									    $parrent = "/<[img|img].*?src='(.*?)'/";

									    $str  =  html_entity_decode($content);

									    preg_match_all($parrent,$str,$match);

									    foreach( $match[1] as $v){

									      $imgurl   =  $this->curlimg($v);

									      $content  =  str_replace($v,$imgurl['url'],$content);

									    }

									    return ($content);

									  }

									  // +----------------------------------------------------------------------

									  // |    验证银行卡号

									  // +----------------------------------------------------------------------

									   public function check_bank_card($card){

									      $url  =  "https://ccdcapi.alipay.com/validateandcachecardinfo.json?_input_charset=utf-8&cardno={$card}&cardbincheck=true";

									      $data  =  $this->curlget($url);

									      $name  =  [

									          "srcb"=> "深圳农村商业银行",

									          "bgb"=> "广西北部湾银行",

									          "shrcb"=> "上海农村商业银行",

									          "bjbank"=> "北京银行",

									          "whccb"=> "威海市商业银行",

									          "bozk"=> "周口银行",

									          "korlabank"=> "库尔勒市商业银行",

									          "spabank"=> "平安银行",

									          "sdeb"=> "顺德农商银行",

									          "hurcb"=> "湖北省农村信用社",

									          "wrcb"=> "无锡农村商业银行",

									          "bocy"=> "朝阳银行",

									          "czbank"=> "浙商银行",

									          "hdbank"=> "邯郸银行",

									          "boc"=> "中国银行",

									          "bod"=> "东莞银行",

									          "ccb"=> "中国建设银行",

									          "zycbank"=> "遵义市商业银行",

									          "sxcb"=> "绍兴银行",

									          "gzrcu"=> "贵州省农村信用社",

									          "zjkccb"=> "张家口市商业银行",

									          "bojz"=> "锦州银行",

									          "bop"=> "平顶山银行",

									          "hkb"=> "汉口银行",

									          "spdb"=> "上海浦东发展银行",

									          "nxrcu"=> "宁夏黄河农村商业银行",

									          "nynb"=> "广东南粤银行",

									          "grcb"=> "广州农商银行",

									          "bosz"=> "苏州银行",

									          "hzcb"=> "杭州银行",

									          "hsbk"=> "衡水银行",

									          "hbc"=> "湖北银行",

									          "jxbank"=> "嘉兴银行",

									          "hrxjb"=> "华融湘江银行",

									          "bodd"=> "丹东银行",

									          "aycb"=> "安阳银行",

									          "egbank"=> "恒丰银行",

									          "cdb"=> "国家开发银行",

									          "tcrcb"=> "江苏太仓农村商业银行",

									          "njcb"=> "南京银行",

									          "zzbank"=> "郑州银行",

									          "dycb"=> "德阳商业银行",

									          "ybccb"=> "宜宾市商业银行",

									          "scrcu"=> "四川省农村信用",

									          "klb"=> "昆仑银行",

									          "lsbank"=> "莱商银行",

									          "ydrcb"=> "尧都农商行",

									          "ccqtgb"=> "重庆三峡银行",

									          "fdb"=> "富滇银行",

									          "jsrcu"=> "江苏省农村信用联合社",

									          "jnbank"=> "济宁银行",

									          "cmb"=> "招商银行",

									          "jinchb"=> "晋城银行jcbank",

									          "fxcb"=> "阜新银行",

									          "whrcb"=> "武汉农村商业银行",

									          "hbycbank"=> "湖北银行宜昌分行",

									          "tzcb"=> "台州银行",

									          "taccb"=> "泰安市商业银行",

									          "xcyh"=> "许昌银行",

									          "ceb"=> "中国光大银行",

									          "nxbank"=> "宁夏银行",

									          "hsbank"=> "徽商银行",

									          "jjbank"=> "九江银行",

									          "nhqs"=> "农信银清算中心",

									          "mtbank"=> "浙江民泰商业银行",

									          "langfb"=> "廊坊银行",

									          "ascb"=> "鞍山银行",

									          "ksrb"=> "昆山农村商业银行",

									          "yxccb"=> "玉溪市商业银行",

									          "dlb"=> "大连银行",

									          "drcbcl"=> "东莞农村商业银行",

									          "gcb"=> "广州银行",

									          "nbbank"=> "宁波银行",

									          "boyk"=> "营口银行",

									          "sxrccu"=> "陕西信合",

									          "glbank"=> "桂林银行",

									          "boqh"=> "青海银行",

									          "cdrcb"=> "成都农商银行",

									          "qdccb"=> "青岛银行",

									          "hkbea"=> "东亚银行",

									          "hbhsbank"=> "湖北银行黄石分行",

									          "wzcb"=> "温州银行",

									          "trcb"=> "天津农商银行",

									          "qlbank"=> "齐鲁银行",

									          "gdrcc"=> "广东省农村信用社联合社",

									          "zjtlcb"=> "浙江泰隆商业银行",

									          "gzb"=> "赣州银行",

									          "gycb"=> "贵阳市商业银行",

									          "cqbank"=> "重庆银行",

									          "daqingb"=> "龙江银行",

									          "cgnb"=> "南充市商业银行",

									          "sccb"=> "三门峡银行",

									          "csrcb"=> "常熟农村商业银行",

									          "shbank"=> "上海银行",

									          "jlbank"=> "吉林银行",

									          "czrcb"=> "常州农村信用联社",

									          "bankwf"=> "潍坊银行",

									          "zrcbank"=> "张家港农村商业银行",

									          "fjhxbc"=> "福建海峡银行",

									          "zjnx"=> "浙江省农村信用社联合社",

									          "lzyh"=> "兰州银行",

									          "jsb"=> "晋商银行",

									          "bohaib"=> "渤海银行",

									          "czcb"=> "浙江稠州商业银行",

									          "yqccb"=> "阳泉银行",

									          "sjbank"=> "盛京银行",

									          "xabank"=> "西安银行",

									          "bsb"=> "包商银行",

									          "jsbank"=> "江苏银行",

									          "fscb"=> "抚顺银行",

									          "hnrcu"=> "河南省农村信用",

									          "comm"=> "交通银行",

									          "xtb"=> "邢台银行",

									          "citic"=> "中信银行",

									          "hxbank"=> "华夏银行",

									          "hnrcc"=> "湖南省农村信用社",

									          "dyccb"=> "东营市商业银行",

									          "orbank"=> "鄂尔多斯银行",

									          "bjrcb"=> "北京农村商业银行",

									          "xybank"=> "信阳银行",

									          "zgccb"=> "自贡市商业银行",

									          "cdcb"=> "成都银行",

									          "hanabank"=> "韩亚银行",

									          "cmbc"=> "中国民生银行",

									          "lybank"=> "洛阳银行",

									          "gdb"=> "广东发展银行",

									          "zbcb"=> "齐商银行",

									          "cbkf"=> "开封市商业银行",

									          "h3cb"=> "内蒙古银行",

									          "cib"=> "兴业银行",

									          "crcbank"=> "重庆农村商业银行",

									          "szsbk"=> "石嘴山银行",

									          "dzbank"=> "德州银行",

									          "srbank"=> "上饶银行",

									          "lsccb"=> "乐山市商业银行",

									          "jxrcu"=> "江西省农村信用",

									          "icbc"=> "中国工商银行",

									          "jzbank"=> "晋中市商业银行",

									          "hzccb"=> "湖州市商业银行",

									          "nhb"=> "南海农村信用联社",

									          "xxbank"=> "新乡银行",

									          "jrcb"=> "江苏江阴农村商业银行",

									          "ynrcc"=> "云南省农村信用社",

									          "abc"=> "中国农业银行",

									          "gxrcu"=> "广西省农村信用",

									          "psbc"=> "中国邮政储蓄银行",

									          "bzmd"=> "驻马店银行",

									          "arcu"=> "安徽省农村信用社",

									          "gsrcu"=> "甘肃省农村信用",

									          "lycb"=> "辽阳市商业银行",

									          "jlrcu"=> "吉林农信",

									          "urmqccb"=> "乌鲁木齐市商业银行",

									          "xlbank"=> "中山小榄村镇银行",

									          "cscb"=> "长沙银行",

									          "jhbank"=> "金华银行",

									          "bhb"=> "河北银行",

									          "nbyz"=> "鄞州银行",

									          "lsbc"=> "临商银行",

									          "bocd"=> "承德银行",

									          "sdrcu"=> "山东农信",

									          "ncb"=> "南昌银行",

									          "tccb"=> "天津银行",

									          "wjrcb"=> "吴江农商银行",

									          "cbbqs"=> "城市商业银行资金清算中心",

									          "hbrcu"=> "河北省农村信用社"

									       ];

									      $bank  =  $data['bank'];

									      $name  =  $name[$bank];

									      if($name){

									        if($bank){

									          $url1      = "https://apimg.alipay.com/combo.png?d=cashier&t={$bank}";

									          $msg['pic']   =  $this->curldownload($url1,time().'.png');

									          $msg['logo']  =  $this->imagecropper('.'.$msg['pic'],30,35);

									          $msg['status'] = 200;

									          $msg['name'] = $name;

									          return $msg;

									        }

									      }else{

									        $msg['status'] = 500;

									        $msg['data'] = '系统检测到该银行卡无效，请输入有效银行卡卡号';

									        return $msg;

									      }

									    }

									/**

									* 图像裁剪

									* @param $title string 原图路径

									* @param $content string 需要裁剪的宽

									* @param $encode string 需要裁剪的高

									*/

									    public function imagecropper($source_path, $target_width, $target_height){

									      $source_info = getimagesize($source_path);

									      $source_width = $source_info[0];

									      $source_height = $source_info[1];

									      $source_mime = $source_info['mime'];

									      $source_x = 0;

									      $source_y = 0;

									      switch ($source_mime)

									      {

									        case 'image/gif':

									        $source_image = imagecreatefromgif($source_path);

									        break;

									        case 'image/jpeg':

									        $source_image = imagecreatefromjpeg($source_path);

									        break;

									        case 'image/png':

									        $source_image = imagecreatefrompng($source_path);

									        break;

									        default:

									        return false;

									        break;

									      }

									      $target_image = imagecreatetruecolor($target_width, $target_height);

									      $cropped_image = imagecreatetruecolor($target_width, $target_height);

									      // 裁剪

									      imagecopy($cropped_image, $source_image,0,0, $source_x, $source_y, $target_width, $target_height);

									      // 缩放

									      imagecopyresampled($target_image, $cropped_image, 0, 0, 0, 0, $target_width, $target_height, $target_width, $target_height);

									      imagecolortransparent($target_image,imagecolorallocate($target_image,255,255,255));

									      $filename = time()."1.png";

									      $path  =  './uploads/card/'.$filename;

									      imagepng($target_image,$path);

									      return '/uploads/card/'.$filename;

									    }

									    // 随机字符

									    public function noncestr($length = 12){

									      $chars = "0123456789abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz";

									      $str ="";

									      for ( $i = 0; $i < $length; $i++ ) {

									        $str .= substr($chars, mt_rand(0, strlen($chars)-1), 1);

									      }

									      return $str;

									    }

									}

									?>

下面是其他网友的补充

php获取小程序码并返回前端显示图片

小程序的二维码分为小程序码和二维码；
生成小程序二维码文档中说后端来生成。

参考小程序开发文档资料：https://developers.weixin.qq.com/miniprogram/dev/api/getwxacodeunlimit.html

文档的参数介绍还是蛮详细的，但是没有具体的demo,对于请求的接口的返回值是进制流（也就是在浏览器显示一堆乱码）也是很令人懊恼，这里贴一下我的代码：

				?

									//获取小程序码，这里调用的是小程序码的a接口类型

									  public function getqrcodeaction()

									  {

									    $data['scene'] = $this->_req->getquery('shareid',11); //scence、page的使用要参考文档(比如：scene的值不能超过32个字符等）

									    $data['width'] = $this->_req->getquery('width',220);

									    $data['auto_color'] = $this->_req->getquery('auto_color');

									    $data['line_color'] = $this->_req->getquery('line_color');

									    $data['is_hyaline'] = $this->_req->getquery('is_hyaline',true);

									    $data['page'] = $this->_req->getquery('page',"");  //由这行以上代码是二维码的样式等由前端传值的形式，也可以直接在后端设置

									    $wxmodel = new wxauthmodel();

									    $token = $wxmodel->getaccesstoken();

									    $res_url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=$token"; //请求微信提供的接口

									    header('content-type:image/png');

									    $data = json_encode($data);

									    $qr_code = $wxmodel->http_request($res_url,$data); //到这里就已经返回微信提供的返回数据了，这个时候的数据是二进制流，要处理下再返回给前端

									    file_put_contents('/tmp/qr_code.png', $qr_code); //将获得的数据读到一个临时图片里

									    $img_string = $this->filetobase64('/tmp/qr_code.png'); //将图片文件转化为base64

									    response::result($img_string);

									  }

									  //本地文件转base64

									  private function filetobase64($file){

									    $base64_file = '';

									    if(file_exists($file)){

									      $mime_type= mime_content_type($file); //如果这里明确是图片的话我建议获取图片类型这句可以省略，直接知道了mine_type='image/png'，因为我这里我虽然存的图片，但是读到的mine_type值为text/plain

									      $base64_data = base64_encode(file_get_contents($file));

									      $base64_file = 'data:'.$mime_type.';base64,'.$base64_data; //$base64_file = 'data:image/png;base64,'.$base64_data; 

									    }

									    return $base64_file;

									  }

									 /*获取access_token,不需要code参数，不能用于获取用户信息的token*/

									  public function getaccesstoken()

									  {

									    $token_file = '/dev/shm/heka2_token.json'; //由于获取token的次数存在限制，所以将一段时间内的token缓存到一个文件（注意缓存路径服务器支持可写可读），过期后再重新获取

									    $data = json_decode(file_get_contents($token_file));

									    if ($data->expire_time < time()) {

									      $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appid&secret=$this->appsecret";

									      $res = json_decode($this->http_request($url));

									      $access_token = $res->access_token;

									      if ($access_token) {

									        $data->expire_time = time() + 7000;

									        $data->access_token = $access_token;

									        file_put_contents($token_file, json_encode($data));

									      }

									    } else {

									      $access_token = $data->access_token;

									    }

									    return $access_token;

									  }

感觉一个完整的php实现的代码目前我还没找到，这个自己用的还行。如有不恰当的地方，欢迎指出~ _

原文链接：https://www.cnblogs.com/zmdComeOn/p/13085394.html

php获取小程序码的实现代码(B类接口)

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