谷歌验证码reCAPTCHA接口在网页中的使用

reCAPTCHA v2

https://www.google.com/recaptcha/admin/site/431807236/setup

cs.apidata.vip
// 在您的网站提供给用户的 HTML 代码中使用此网站密钥
6LcE27wZAAAAAF4ggKUdK7OiKfTxhVsSWDZWqQYa
// 此密钥用于您的网站和 reCAPTCHA 之间的通信
6LcE27wZAAAAAC3ECu5DsoXMcnu5nV53juIhSrPV

HTML

<!-- 第一步引入 js -->
<script src="https://www.google.com/recaptcha/api.js" async defer></script>
<!--  加入代码 填写html密钥 -->
<div class="g-recaptcha" data-sitekey="6LcE27wZAAAAAF4ggKUdK7OiKfTxhVsSWDZWqQYa"></div>

PHP

<?php
$secretKey = "6LcE27wZAAAAAC3ECu5DsoXMcnu5nV53juIhSrPV";
$code = $_REQUEST['g-recaptcha-response'];
if($code == ""){
    _json(0,"Please click Google to verify");
}
$code_re = http_request("https://www.google.com/recaptcha/api/siteverify",["secret"=>$secretKey,"response"=>$code]);
if($code['success'] === false){
    _json(0,"Google verify ".json_encode($code_re['error-codes']));
}

reCAPTCHA v3

https://www.google.com/recaptcha/admin/site/432089010/setup

6LeyJ8EZAAAAAOBIjx7Ql6cqC_VllMVJpYRLNFth
6LeyJ8EZAAAAADL2hn-NOD7NxMJcSfN4irzDG025

HTML

<button class="g-recaptcha" 
        data-sitekey="reCAPTCHA_site_key" 
        data-callback='onSubmit' 
        data-action='submit'>Submit</button>

PHP 同v2

文档地址 https://developers.google.com/recaptcha/docs/v3

使用到的函数

/**
 * 输出json
 * @param int $status
 * @param string $msg
 * @param array $data
 */
function _json($status=1, $msg="ok", $data=[], $option=[])
{
    header("Content-type:application/json;charset=utf-8");
    $re = ["code"=>(int)$status,"msg"=>(string)$msg,"data"=>$data];
    $re = array_merge($re, $option);
    echo json_encode($re,256);
    exit;
}
/**
 * http请求
 * @param $url
 * @param string $data
 * @param bool $pem
 * @return mixed|string
 */
function http_request($url,$data='',$pem=false){
    $ch= curl_init();
    curl_setopt($ch, CURLOPT_URL, $url );
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //设置内容是不是返回
    if(!empty($data)){
        curl_setopt($ch, CURLOPT_POST, 1); //设置post提交数据
        curl_setopt($ch,CURLOPT_POSTFIELDS,$data); //设置post提交数据
    }
    //携带证书
    if(!empty($pem)){
        curl_setopt($ch,CURLOPT_SSLCERT,CERT_PATH); //设置post提交数据
        curl_setopt($ch,CURLOPT_SSLKEY,KEY_PATH);
        curl_setopt($ch,CURLOPT_CAINFO,KEY_PATH);
    }
    //判断当前是不是有post数据的发
    $output=curl_exec($ch);
    if ($output === FALSE) {
        $output="curl 错误信息: " . curl_error($ch);
    }
    curl_close($ch);
    return $output;
}