微信小程序二维码获取和保存 PHP
微信小程序二维码获取和保存 PHP
class Wx {
/* 请求地址 */
protected $url;
/* 微信配置 */
protected $config;
public function __construct(){
$this->url = 'https://api.weixin.qq.com/';
$this->config = array(
'appid' => '',
'mch_id' => '',
'AppSecret' => '',
'key' => '',
'notify_url' => ''
);
}
/**
* 获取微信token
* @return boolean|mixed array('access_token'=>'ACCESS_TOKEN','expires_in'=>'有效时间','death_line'=>'失效时间戳')
*/
public function get_access_token(){
$token_cache = F('wx_token');
/* 判断缓存token是否失效,未失效是直接使用缓存的的token，已失效则重新获取 */
if($token_cache['death_line']<=time()){
$ext_url = 'cgi-bin/token';
$grant_type = 'client_credential';
$appid = $this->config['appid'];
$secret = $this->config['AppSecret'];
$param = array(
'grant_type'=>$grant_type,
'appid'=>$appid,
'secret'=>$secret,
);
$full_url = $this->build_full_url($this->url.$ext_url, $param);
$result = $this->curl_get($full_url);
if($result!==FALSE){
$result = json_decode($result,true);
/* 设置失效时间 */
$result['death_line'] = time() + $result['expires_in'];
F('wx_token',$result);
}
}else{
$result = F('wx_token');
}
return $result;
}
/**
* 获取小程序二维码
* @param array $data 需要传递的参数,微信限制(最大32个可见字符,键名+键值+连接符['='|'&']<=32)
* @param string $page 已经发布的小程序存在的页面，根路径前不要填加'/'，不能携带参数（参数请放在scene字段里）
* @param number $width 二维码的宽度
* @param boolean $auto_color 自动配置线条颜色，如果颜色依然是黑色，则说明不建议配置主色调
* @param array $line_color auto_color 为 false 时生效，使用 rgb 设置颜色 例如 {"r":"xxx","g":"xxx","b":"xxx"} 十进制表示
* @param boolean $is_hyaline 是否需要透明底色， is_hyaline 为true时，生成透明底色的小程序码
* @return boolean|mixed
*/
public function get_mini_code($data,$page,$width=430,$auto_color=false,$line_color=array('r'=>'0','g'=>'0','b'=>'0'),$is_hyaline=false){
$token_info = $this->get_access_token();
$ext_url = 'wxa/getwxacodeunlimit';
$full_url = $this->build_full_url($this->url.$ext_url, array('access_token'=>$token_info['access_token']));
$wx_data = array(
'scene'=>'?'.http_build_query($data),
'page'=>$page,
'width'=>$width,
'auto_color'=>$auto_color,
'line_color'=>$line_color,
'is_hyaline'=>$is_hyaline,
);
$wx_data = json_encode($wx_data);
$res = $this->curl_post($full_url,$wx_data);
return $res;
}
/**
*
* @param string $url
* @param string $param
* @return string
*/
public function build_full_url($url,$param){
$param_str = http_build_query($param);
/* 判断原链接是否已有参数 */
$joiner = strpos($string,'?')===false ? '?' : '&';
/* 拼接url */
$full_url = $url.$joiner.$param_str;
return $full_url;
}
/**
* 模拟GET请求
*/
public function curl_get($url){
$httpInfo = array();
$ch = curl_init();
curl_setopt( $ch, CURLOPT_HTTP_VERSION , CURL_HTTP_VERSION_1_1 );
curl_setopt( $ch, CURLOPT_USERAGENT , 'limuzhengxin.com' );
curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT , 60 );
curl_setopt( $ch, CURLOPT_TIMEOUT , 60);
curl_setopt( $ch, CURLOPT_RETURNTRANSFER , true );
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt( $ch , CURLOPT_URL , $url);
$response = curl_exec( $ch );
if ($response === FALSE) {
return false;
}
$httpCode = curl_getinfo( $ch , CURLINFO_HTTP_CODE );
$httpInfo = array_merge( $httpInfo , curl_getinfo( $ch ) );
curl_close( $ch );
return $response;
}
/**
* 模拟POST请求
*/
public function curl_post($url,$params=false){
$httpInfo = array();
$ch = curl_init();
curl_setopt( $ch, CURLOPT_HTTP_VERSION , CURL_HTTP_VERSION_1_1 );
curl_setopt( $ch, CURLOPT_USERAGENT , 'limuzhengxin.com' );
curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT , 60 );
curl_setopt( $ch, CURLOPT_TIMEOUT , 60);
curl_setopt( $ch, CURLOPT_RETURNTRANSFER , true );
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt( $ch , CURLOPT_POST , 1 );
curl_setopt( $ch , CURLOPT_POSTFIELDS , $params );
curl_setopt( $ch , CURLOPT_URL , $url );
$response = curl_exec( $ch );
if ($response === FALSE) {
return false;
}
$httpCode = curl_getinfo( $ch , CURLINFO_HTTP_CODE );
$httpInfo = array_merge( $httpInfo , curl_getinfo( $ch ) );
curl_close( $ch );
return $response;
}
}
/**
* 获取小程序二维码并保存到文件夹
* @param string $user_id 用户ID
* @return string 小程序二维码保存路径
* @author lidong<[email protected]>
*/
function get_mini_code_path($user_id){
/* 小程序二维码保存目录 */
$file_path = 'public/upload/user/mini_qrcode/';
mkdir_chmod($file_path);
$filename = $file_path.$user_id.'.png';
if(!file_exists($filename)){
$Wx = new Wx();
$data=array(
'id'=>$goods_id,
);
$page = ''; /* 小程序详情页 */
$res = $Wx->get_mini_code($data, $page);
$im = file_put_contents($filename, $res);
}
$img = getHttpType().$_SERVER['HTTP_HOST'].'/'.$filename;
return $img;
}
/**
* 文件夹创建并且给权限
* @param string $path 文件夹路径
* @param string $mode 权限,默认'0777'
* @return bool
* @author lidong<[email protected]>
*/
function mkdir_chmod($path, $mode = 0777){
if(is_dir($path)) {
return true;
}
$result = mkdir($path, $mode, true);
if($result) {
$path_arr = explode('/',$path);
$path_str = '';
foreach($path_arr as $val){
$path_str .= $val.'/';
$a = chmod($path_str,$mode);
}
}
return $result;
}
/**
* 获取http协议类型 (http:// || https://)
*
* @return string(http:// || https://)
* @author lidong<[email protected]>
*/
function getHttpType(){
$http_type = ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') || (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')) ? 'https://' : 'http://';
return $http_type;
}代码扣出来的，可能没法直接跑，不过大概意思应该都能明白；
代码原来是在TP3.2里的 因为涉及到一些客户隐私，所以把相关的信息去掉了，将就着看下吧
附：小程序二维码文档