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PHP生成微信小程序码图片,写了一个简单的例子,供大家参考
2.调用微信小程序的接口,使用get传参获取access_token,access_token 的有效期目前为2个小时,可以将其保存到起来,设置session过期时间,保存到sesseion,如图:
3.调用微信小程序二维码接口,使用post传参获取二维码,返回的二维码是二进制数据,可以用file_put_contents转为图片,最后生成了一个test.png的图片,如图:
附上代码:
function test(){
$appid = 'wxac3977471957b98e';
$secret = 'cea33650e39f449be227a1b4ee244339';
$filename = './uploads/test.png';
$url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$appid.'&secret='.$secret;
//开启session
session_start();
// 保存2小时
$lifeTime = 2 * 3600;
setcookie(session_name(), session_id(), time() + $lifeTime, "/");
// echo $url;
$access_token = $_SESSION['access_token'];
if(empty($access_token)){
$access_token_data = $this->getJson($url);
$access_token = $access_token_data['access_token'];
$_SESSION['access_token'] = $access_token;
}
if(!empty($access_token)){
$url = 'https://api.weixin.qq.com/wxa/getwxacode?access_token='.$access_token;
$data['path'] = 'pages/index/index';
$data['scene'] = 'jobId=222';//(string类型,必须是数字)
$data['width'] = 430;
$result = $this->curlPost($url,$data,'POST');
// p($result);
$ret = file_put_contents('./uploads/test.png', $result, true);
echo '成功';
}else{
echo 'string';
}
}
function getJson($url,$data=array(),$method='GET'){
$ch = curl_init();//1.初始化
curl_setopt($ch, CURLOPT_URL, $url);//2.请求地址
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);//3.请求方式
//4.参数如下
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
if($method=="POST"){//5.post方式的时候添加数据
$data = json_encode($data);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
return json_decode($output, true);
}
function curlPost($url,$data,$method){
$ch = curl_init(); //1.初始化
curl_setopt($ch, CURLOPT_URL, $url); //2.请求地址
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);//3.请求方式
//4.参数如下
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);//https
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');//模拟浏览器
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER,array('Accept-Encoding: gzip, deflate'));//gzip解压内容
curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate');
if($method=="POST"){//5.post方式的时候添加数据
$data = json_encode($data);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$tmpInfo = curl_exec($ch);//6.执行
if (curl_errno($ch)) {//7.如果出错
return curl_error($ch);
}
curl_close($ch);//8.关闭
return $tmpInfo;
}
来自时刻需
- 我的微信
- 这是我的微信扫一扫
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- 我的微信公众号
- 我的微信公众号扫一扫
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