如何使用PHP语言调用API接口以实现不同系统之间的数据传输？

$curl = curl_init();

$url = 'https://api.example.com/data'; // API接口的URL地址
curl_setopt($curl, CURLOPT_URL, $url);

curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'GET'); // 请求方法，可以是GET、POST等

$headers = array(
    'Content-Type: application/json', // 设置请求头中的Content-Type为application/json
    'Authorization: Bearer token123' // 设置请求头中的Authorization为Bearer token123
);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);

$response = curl_exec($curl);

$data = json_decode($response, true); // 解析响应数据为PHP数组

$curl = curl_init();

$url = 'https://api.example.com/data';
curl_setopt($curl, CURLOPT_URL, $url);

curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'GET');

$headers = array(
    'Content-Type: application/json',
    'Authorization: Bearer token123'
);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);

$response = curl_exec($curl);
$data = json_decode($response, true);

curl_close($curl);

// 处理响应数据
if ($data) {
    foreach($data as $item) {
        echo $item['name'] . ': ' . $item['value'] . '<br>';
    }
} else {
    echo '请求失败';
}