PHP如何对接百度人脸识别接口？

<?php
function request($url, $data){
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $response = curl_exec($ch);
    curl_close($ch);
    return $response;
}
?>

<?php
function detect(){
    $url = 'https://aip.baidubce.com/rest/2.0/face/v3/detect';
    $data = array(
        'api_key' => 'your_api_key',
        'api_secret' => 'your_api_secret',
        'image' => 'your_image',
        'image_type' => 'URL',
        'max_face_num' => 1
    );
    $response = request($url, $data);
    return $response;
}
?>

<?php
require_once 'face_detection.php';
$response = detect();
$result = json_decode($response, true);
if($result['error_code'] == 0){
    $face_num = $result['result']['face_num'];
    echo "检测到{$face_num}个人脸";
} else {
    echo "人脸检测失败：{$result['error_msg']}";
}
?>