03-08 03:04 阅读 579

PHP 身份证识别

实现步骤：

　　1. 前端上传一张base64的图片

　　2. php接收，进行验证

　　3. 调用百度api进行识别

　　4. 封装返回数据

index.html

DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Titletitle>
head>
<body>
<input type="file" id="file" onchange="imageChange(this)"><br>
<img id="img" src="" alt="" style="height: 100px;">
<ul id="datas">ul>

<script src="https://cdn.staticfile.org/jquery/2.0.3/jquery.min.js">script>
<script >
    function imageChange(obj){
        var image = obj.files[0];
        //将file 转为base64
        var reader = new FileReader();
        reader.readAsDataURL(image);
        reader.onload = function(ev) {
            var dataURL = ev.target.result;
            var src = ‘‘;
            $.post(‘cacheId.php‘,{base:dataURL,type:1},function(data){  //ajax请求
                $(‘#img‘).attr(‘src‘,dataURL)
                var datas = data.words_result;
                for(v in datas){
                    src += ‘ ‘+v+‘：‘+datas[v].words+‘‘
                }
                $(‘#datas‘).append(src)
            },‘json‘)
        }

    }
script>
body>
html>

cacheId.php

php
$api_key = ‘你的api_key‘;
$secret_key = ‘你的secret_key‘;



//首先先获取access_token  ,因为请求身份证验证接口需要用到 ，请求access_token 有效期是30天 我这里没有保存， 如需要你们可以保存到session中
//获取access_token  返回参数请参考 https://ai.baidu.com/ai-doc/REFERENCE/Ck3dwjhhu
$access_token = getAccessToken($api_key,$secret_key);

//请求身份证识别接口地址
//https://cloud.baidu.com/doc/OCR/s/rk3h7xzck  官网文档
$url = ‘https://aip.baidubce.com/rest/2.0/ocr/v1/idcard?access_token=‘.$access_token;

//接收到前端传过来的base64图片  官网最大能接口4M 并且后缀为jpg/jpeg/png/bmp格式， 我这里也懒得进行操作了，你们获取base进行验证一下就行
$base = $_POST[‘base‘];

//发起请求
$body = [‘id_card_side‘ => "front",‘image‘ => $base];
//$body[‘detect_photo‘] = ‘true‘;  //这个是获取头像的， 有需要请解注释

//请求第三方并以json的格式返回
$res = request_post($url,$body);
//返回参数参考地址： https://cloud.baidu.com/doc/OCR/s/rk3h7xzck
//错误码请自行判断
//参考地址 https://cloud.baidu.com/doc/OCR/s/dk3h7y5vr
exit(json_encode($res));





/**
 * 创建一个curl请求，用来请求第三方
 * @param $url
 * @param array $data
 * @return array|bool|float|int|mixed|stdClass|string|null
 * User: wang
 * Date: 2021/9/6 18:13
 */
function request_post($url , $data=array()){
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    $output = curl_exec($ch);
    curl_close($ch);

    return json_decode($output,true);
}

/**
 * 获取AccessToken
 * @param $api_key
 * @param $secret_key
 * @return mixed|string
 * User: wang
 * Date: 2021/9/6 18:30
 */
function getAccessToken($api_key,$secret_key){
    $url = ‘https://aip.baidubce.com/oauth/2.0/token‘;
    $post_data[‘grant_type‘]    = ‘client_credentials‘;
    $post_data[‘client_id‘]     = $api_key;
    $post_data[‘client_secret‘] = $secret_key;
    $o = "";
    foreach ( $post_data as $k => $v )
    {
        $o.= "$k=" . urlencode( $v ). "&" ;
    }
    $post_data = substr($o,0,-1);

    $res = request_post($url, $post_data);
    if(!isset($res[‘access_token‘])){
        exit($res[‘error‘]);
    }
    return $res[‘access_token‘];
}

原文：https://www.cnblogs.com/quan846951943/p/15235092.html