간단한 튜토리얼: PHP를 Baidu 이미지 정의 인식 인터페이스에 연결하는 방법은 무엇입니까?

<?php
    function imgToBase64($imgPath) {
        $imgInfo = getimagesize($imgPath);
        $fp = fopen($imgPath, 'rb');
        if ($fp) {
            $imgData = fread($fp, filesize($imgPath));
            $base64Data = base64_encode($imgData);
            return 'data:' . $imgInfo['mime'] . ';base64,' . $base64Data;
        } else {
            return false;
        }
    }
    
    $imgPath = 'test.jpg';
    $base64Data = imgToBase64($imgPath);
    if (!$base64Data) {
        echo '图像文件读取失败';
        exit;
    }
?>

<?php
    $url = 'https://aip.baidubce.com/rest/2.0/image-classify/v1/clearness';
    $access_token = 'your_access_token';
    
    // 构造请求数据
    $requestData = array(
        'image' => $base64Data,
    );
    $requestBody = http_build_query($requestData);
    
    // 发送POST请求
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $requestBody);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_HTTPHEADER, array(
        'Content-Type: application/x-www-form-urlencoded',
        'Content-Length: ' . strlen($requestBody),
        'Access-Token: ' . $access_token,
    ));
    $response = curl_exec($curl);
    curl_close($curl);
    
    // 解析响应结果
    $result = json_decode($response, true);
    if (isset($result['error_code'])) {
        echo '请求出错：' . $result['error_msg'];
        exit;
    }
    
    // 输出清晰度评分
    echo '清晰度评分：' . $result['result']['score'];
?>