lianjie_admin/app/Admin/Common/Images.php

<?php


namespace App\Admin\Common;


use Dcat\Admin\Controllers\AdminController;
use GuzzleHttp\Client;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Storage;


class Images extends AdminController
{
    /**
     * 获取token
     */
    private function getWxToken()
    {
        $appid= env('WECHAT_MINI_PROGRAM_APPID');
        $secret=env('WECHAT_MINI_PROGRAM_SECRET');
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=".$secret;
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL,$url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,0);
        $data = curl_exec($ch);
        curl_close($ch);
        $data = json_decode($data,true);
        return $data['access_token'];
    }

    /**
     * 请求生成微信小程序码
     */
    public function createQrCode($param,$path)
    {
        $access_token = $this->getWxToken();
        $data=array(
            'scene'=>$param,
            "page"=>$path,
            "width"=>100
        );
        $data = json_encode($data);
        $url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=".$access_token."";
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL,$url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,0);
        curl_setopt($ch, CURLOPT_POST,1);
        curl_setopt($ch, CURLOPT_POSTFIELDS,$data);
        $data = curl_exec($ch);
        curl_close($ch);
        return $data;

    }

    /**
     * 请求生成微信二维码
     * @param $param 参数
     */
    public function createWeChatQrCode($param,$path)
    {
        $access_token = $this->getWxToken();
        $data=array(
            "path"=>$path.$param,
            "width"=>280
        );
        $data = json_encode($data);
        $url = "https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=".$access_token."";

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL,$url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,0);
        curl_setopt($ch, CURLOPT_POST,1);
        curl_setopt($ch, CURLOPT_POSTFIELDS,$data);
        $data = curl_exec($ch);
        curl_close($ch);
        return $data;
    }

    /**
     * 上传文件到oss
     * @param $base64  //文件流
     * @param $fileName //文件名称
     * @return bool
     */
    public function uploadOss($base64,$fileName)
    {
        return Storage::put($fileName,$base64);
    }

    public function test()
    {
        $wx_head = 'http://www.marketmanage.com/uploads/20200728/d5a491cd3d8d071e3212c3478e8e35a1.jpg';
        $avatar_file = file_get_contents($wx_head);
        file_put_contents('./logo.jpg',$avatar_file);
        $logo = $this->changeAvatar($avatar_file);
        file_put_contents('./logo_new.jpg',$logo);
        //$qr_code = $this->createQrCode('','');
    }


    public function changeAvatar($avatar)
    {
        //处理用户头像为圆形icon
        $avatar = imagecreatefromstring($avatar);
        $w = imagesx($avatar)-5;
        $h = imagesy($avatar)-5;
        $w = min($w, $h);
        $h = $w;

        $img = imagecreatetruecolor($w, $h);
        imagesavealpha($img, true);
        $bg = imagecolorallocatealpha($img, 255, 255, 255, 127);
        imagefill($img, 0, 0, $bg);

        $r = $w / 2; //圆半径
        $y_x = $r; //圆心X坐标
        $y_y = $r; //圆心Y坐标
        for ($x = 0; $x < $w; $x++) {
            for ($y = 0; $y < $h; $y++) {
                $rgbColor = imagecolorat($avatar, $x, $y);

                if (((($x - $r) * ($x - $r) + ($y - $r) * ($y - $r)) < ($r * $r))) {
                    imagesetpixel($img, $x, $y, $rgbColor);
                }
            }
        }

        ob_start();
        imagepng($img);
        imagedestroy($img);
        imagedestroy($avatar);
        $contents = ob_get_contents();  //读取缓存区的内容
        ob_end_clean();  //清空缓存区
        return $contents;
    }


    public function  makeOnePic($qr_code, $logo)  //二维码与头像组合
    {
        $qr_code = imagecreatefromstring($qr_code);  //生成的二维码底色为白色
        //设置二维码为透明底
        imagesavealpha($qr_code, true);  //这个设置一定要加上
        $bg = imagecolorallocatealpha($qr_code, 255, 255, 255, 127);   //拾取一个完全透明的颜色,最后一个参数127为全透明
        imagefill($qr_code, 0, 0, $bg);
        $icon = imagecreatefromstring($logo);  //生成中间圆形logo （微信头像获取到的logo的大小为132px 132px）

        $qr_width = imagesx($qr_code);  //二维码图片宽度
        $lg_width = imagesx($icon);  //logo图片宽度
        $lg_height = imagesy($icon);  //logo图片高度

        $qr_lg_width = $qr_width / 2.2;
        $scale = $lg_width / $qr_lg_width;
        $qr_lg_height = $lg_height / $scale;
        $start_width = ($qr_width - $lg_width) / 2 ;  //（获取logo的左上方的位置：( 外部的正方形-logo的宽 ) / 2,我这边存在1px的偏差 我就给+2啦）

        imagecopyresampled($qr_code, $icon, $start_width, $start_width, 0, 0, $qr_lg_width, $qr_lg_height, $lg_width, $lg_height);
        imagejpeg($qr_code,'./qrcode.png'); //保存

        imagedestroy($qr_code);
        imagedestroy($icon);
    }
}