How to achieve face comparison in php

php method to implement face comparison: 1. Create a PHP sample file; 2. Query the face comparison interface address; 3. Request the face comparison interface data; 4. Parse the data and pass "function base64EncodeImage( ){...}" and "function request(){...}" methods can be used to perform network requests and image comparisons.

The operating environment of this tutorial: Windows 7 system, PHP version 8.1, DELL G3 computer

How does php achieve face comparison?

Face comparison-PHP version

Face comparison interface query address: https://www.juhe.cn/docs/api/id/264? s=cpphpcn

is used to compare the uploaded picture with the actual ID card photo in the library.

The PHP code is as follows:

<?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([&#39;key&#39;, &#39;idcard&#39;, &#39;realname&#39;, &#39;image&#39;]);//组合参数
$result = request($url, $params, &#39;post&#39;);//请求
var_dump($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($url, 0, 8)) == &#39;https://&#39;) {
        curl_setopt($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(
        &#39;httpCode&#39; => $httpCode, // http状态码
        &#39;content&#39; => $httpContent, // 网络返回内容
    );
}

Interface remarks: Submit a face picture according to the format and compare it with the picture in the ID card database, and return the similarity score ,The face image should be within 100K, in jpeg format, and the longest side pixel should be 800pi.

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