如何在PHP中通过rest api2向docusign模板添加字段

<?php
$accountId = 'YOUR_ACCOUNT_ID';
$templateId = 'YOUR_TEMPLATE_ID';
$accessToken = 'YOUR_ACCESS_TOKEN';

$url = "https://demo.docusign.net/restapi/v2/accounts/{$accountId}/templates/{$templateId}/recipients";
$headers = array(
    "Content-Type: application/json",
    "Authorization: Bearer {$accessToken}"
);

$data = array(
    "signers" => array(
        array(
            "email" => "recipient@example.com",
            "name" => "Recipient Name",
            "roleName" => "Signer1",
            "tabs" => array(
                "textTabs" => array(
                    array(
                        "tabLabel" => "TextTab1",
                        "value" => "Sample Value"
                    )
                )
            )
        )
    )
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>