身份证图片识别、银行卡图片识别接口（阿里云）

作者：辰风沐阳阅读：1698 发布时间：2021-05-19 上次更新：2022-04-11

#### 1. 前言
---

身份证图片识别：[https://market.aliyun.com/products/57124001/cmapi010401.html](https://market.aliyun.com/products/57124001/cmapi010401.html)

银行卡图片识别：[https://market.aliyun.com/products/57124001/cmapi016870.html](https://market.aliyun.com/products/57124001/cmapi016870.html)

阿里云OCR印刷文字识别接口一览：[https://www.aliyun.com/activity/bigdata/ocrprodpromotionjuly](https://www.aliyun.com/activity/bigdata/ocrprodpromotionjuly)

#### 2. 使用示例
---

```php
use app\lib\AliYun;

try {
    // 身份证图片正面识别
    $result = app(AliYun::class)->idCardOcr($img, 1);
    // 身份证图片反面识别
    $result = app(AliYun::class)->idCardOcr($img, 2);
    // 银行卡图片识别
    $result = app(AliYun::class)->bankCardOcr($img);
} catch (\Throwable $th) {
    echo $th->getMessage();
}
```

#### 3. 阿里云接口功能封装
---

```
<?php

namespace app\lib;

/**
 * 阿里云接口封装
 */
class AliYun
{
    /**
     * 初始化配置参数
     */
    public function __construct()
    {
        // 阿里云 云市场 AppCode
        $this->appcode = "85ac5eff462e433ea373b2744c7xxxx";
    }

// +----------------------------------------------
    // | OCR 印刷文字识别 
    // +----------------------------------------------

/**
     * 身份证识别
     *
     * @param string  $img  图片绝对路径或URL地址
     * @param integer $side 身份证正反面类型:face(1)/back(2)
     */
    public function idCardOcr(string $img, int $side)
    {
        $url = "http://dm-51.data.aliyun.com/rest/160601/ocr/ocr_idcard.json";
        $body = ['image' => $this->img_base64($img)];
        //如果没有configure字段，config设为空
        //身份证正反面类型:face/back
        $config = ['side' => $side == 1 ? 'face' : 'back'];
        count($config) > 0 && $body["configure"] = $config;
        return $this->curlPost($url, $body);
    }

/**
     * 银行卡识别
     *
     * @param string $img
     */
    public function bankCardOcr(string $img)
    {
        $url = "https://yhk.market.alicloudapi.com";
        $path = "/rest/160601/ocr/ocr_bank_card.json";
        $url = $url . $path;
        $body = [
            'image'     => $this->img_base64($img),
            'configure' => [
                'card_type' => true
            ],
        ];
        return $this->curlPost($url, $body);
    }

/**
     * curl post 请求封装
     *
     * @param string $url
     * @param array  $body
     */
    private function curlPost(string $url, array $body)
    {
        $method = "POST";
        $headers = array();
        array_push($headers, "Authorization:APPCODE " . $this->appcode);
        //根据API的要求，定义相对应的Content-Type
        array_push($headers, "Content-Type" . ":" . "application/json; charset=UTF-8");
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $method);
        curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($curl, CURLOPT_FAILONERROR, false);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        // curl_setopt($curl, CURLOPT_HEADER, true);
        if (1 == strpos("$" . $url, "https://")) {
            curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        }
        $body = json_encode($body);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $body);
        $result = curl_exec($curl);
        $httpCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
        if ($httpCode == 200) {
            $result = json_decode($result, true);
            if (isset($result['success']) && $result['success'] === true) {
                return $result; //识别成功
            } else {
                throw new \Exception('识别失败', 201);
            }
        } else {
            throw new \Exception('图片错误', 201);
        }
    }

/**
     * 返回图片的base64或URL地址
     *
     * @param string $path 绝对路径或URL地址
     */
    private function img_base64(string $path)
    {
        //对path进行判断，如果是本地文件就二进制读取并base64编码，如果是url,则返回
        $img_data = "";
        if (substr($path, 0, strlen("http")) === "http") {
            // 网络地址图片
            $img_data = $path;
        } else {
            // 绝对地址图片
            if ($fp = fopen($path, "rb", 0)) {
                $binary = fread($fp, filesize($path)); // 文件读取
                fclose($fp);
                $img_data = base64_encode($binary); // 转码
            } else {
                throw new \Exception('图片不存在', 201);
            }
        }
        return $img_data;
    }
}
```

身份证图片识别、银行卡图片识别接口（阿里云）

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