php如何实现人脸对比

<?php

$url = "http://apis.juhe.cn/verifyface/verify";//接口地址
$key = "******************";//密钥
$idcard = "******************";//身份证
$realname = "***";//姓名
$image_path = "E:/ocr/cc.jpg";//图片地址
$image = base64EncodeImage($image_path);//图片转base64
$params = compact(['key', 'idcard', 'realname', 'image']);//组合参数
$result = request($url, $params, 'post');//请求
var_dump($result);//结果

//图片base64
function base64EncodeImage($img_file)
{
    $app_img_file = $img_file; // 图片路径
    $fp = fopen($app_img_file, "r"); // 图片是否可读权限
    $image_data = fread($fp, filesize($app_img_file));
    $base64_image = base64_encode($image_data);
    fclose($fp);
    return $base64_image;
}

/**网络请求
 * @param string $url 地址
 * @param array $params 参数
 * @param string $method 请求方法
 * @param array $headers 请求头
 * @return array
 */
function request($url, $params = array(), $method = "get", $headers = array())
{
    if (strtolower($method) != "post") {
        $method = "get";
    }
    if ($params) {
        if (is_array($params)) {
            $paramsString = http_build_query($params);
        } else {
            $paramsString = $params;
        }
    } else {
        $paramsString = "";
    }
    if ($method == "get" && !empty($paramsString)) {
        $url = $url . "?" . $paramsString;
    }
    // 初始化
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    if (strtolower(substr($url, 0, 8)) == 'https://') {
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 跳过证书检查
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); // 从证书中检查SSL加密算法是否存在
    }

    // 请求头
    if (!empty($headers)) {
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    }

    // 指定post方式
    if ($method == "post") {
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $paramsString);
    }
    curl_setopt($ch, CURLOPT_URL, $url);

    // 请求网络
    $httpContent = curl_exec($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    // 关闭
    curl_close($ch);

    return array(
        'httpCode' => $httpCode, // http状态码
        'content' => $httpContent, // 网络返回内容
    );
}