自定义小程序带参数获取方形和圆形二维码

最新推荐文章于 2025-06-01 23:05:18 发布

原创最新推荐文章于 2025-06-01 23:05:18 发布 · 1.2k 阅读

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#小程序 #php #后端 #微信小程序

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本文介绍如何在微信小程序中实现自定义参数的方形和圆形二维码生成，结合后端PHP服务，详细讲解了从接口设计到前端调用的全过程。

<?php
header('content-type:text/html;charset=utf-8');
define("ViaGe_Weixin_Access_Token",str_replace('\\','/',dirname(__FILE__)));//根目录物理路径
//配置APPID、APPSECRET
$appid = "APPID";
$secret = "APPSECRET";
$qrcode=_qrcode("1",$appid,$secret,"258");
echo '<img src="./'.$qrcode['img'].'" >';
//获取access_token
function access_token($appid,$secret){
    $access_token = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$secret";
    $access_path = ViaGe_Weixin_Access_Token."/" . $appid . ".json";
    $file = file_get_contents($access_path, true);
    $access = json_decode($file, true);
    if (time() > $access['expires']) {
        $get_access_token = Roboa_Url($access_token);
        $get_access_token = json_decode($get_access_token, true);
        $data = array();
        $data['access_token'] = $get_access_token['access_token'];
        $data['expires'] = time() + 7200;
        $jsonStr = json_encode($data);
        $fp = fopen($access_path, "w");
        fwrite($fp, $jsonStr);
        fclose($fp);
        return $data['access_token'];
    } else {
        return $access['access_token'];
    }
}
function _qrcode($type,$appid,$secret,$uid) {
    $width='430';
    switch ($type){
        case "1"://获取圆形小程序图像
            $access_token = $access_token =access_token($appid,$secret);;
            $url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=" . $access_token;
            $data['scene'] = 'roboa_token='.$uid;
            $data['path'] = 'pages/index/index';
            $data['width'] = $width;
            $res = Roboa_Url($url, json_encode($data),'POST');
            $path = ViaGe_Weixin_Access_Token."/".$uid."qrcode.png";
            $imgpath=$uid."qrcode.png";
            file_put_contents($path, $res);
            $return['status_code'] = 2000;
            $return['msg'] = 'ok';
            $return['img'] = $imgpath;
            $flag['img'] = $return['img'];
            break;
        case "2"://获取方形小程序图像
            $access_token =access_token($appid,$secret);
            $qcode ="https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=$access_token";
            $param = json_encode(array("path" => "pages/index/index?roboa_token=".$uid, "width" => $width));
            $result = Roboa_Url($qcode, $param, "POST");
            file_put_contents(ViaGe_Weixin_Access_Token."/".$uid."qrcode.png", $result);
            $imgpath=$uid."qrcode.png";
            $flag['img']= $imgpath;
            break;
    }
    return $flag;
}
function Roboa_Url($url, $data = '', $method = 'GET'){
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
    curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($curl, CURLOPT_AUTOREFERER, 1);
    if ($method == 'POST') {
        curl_setopt($curl, CURLOPT_POST, 1);
        if ($data != '') {
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        }
    }
    curl_setopt($curl, CURLOPT_TIMEOUT, 30);
    curl_setopt($curl, CURLOPT_HEADER, 0);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    $result = curl_exec($curl);
    curl_close($curl);
    return $result;
}
?>