我正在尝试在浏览器中显示来自PHP POST请求的响应字符串。如果我运行:
<?php
$project_id = "abcdefgh";
$session_id = "123456789";
$url = "https://dialogflow.googleapis.com/v2/projects/".$project_id."/agent/sessions/".$session_id.":detectIntent";
$query = '{
"query_input": {
"text": {
"text": "Test input",
"language_code": "en-US"
}
}
}';
//open connection
$ch = curl_init();
//set the url, number of POST vars, POST data
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_POST, true);
curl_setopt($ch,CURLOPT_POSTFIELDS, $query);
//So that curl_exec returns the contents of the cURL; rather than echoing it
curl_setopt($ch,CURLOPT_RETURNTRANSFER, true);
//execute post
$result = curl_exec($ch);
echo $result;
curl_close($ch);
?>
在VSCode中,我得到以下响应(这是预期的行为:):
{
"error": {
"code": 401,
"message": "Request is missing required authentication credential. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.",
"status": "UNAUTHENTICATED"
}
}
但是,如果我导航到Chrome中的WAMP服务器上运行的index.php文件,则会出现黑屏。我可以回显其他字符串,例如:
我什至可以直接复制响应,并在浏览器中将响应作为字符串回显。似乎与发布请求不兼容(也许这是时间安排?)。这可能是WAMP配置/权限问题,但我认为该问题可能在其他地方。感谢您的帮助!
由于返回是一个对象,因此必须遵循其对象链来访问它。无法执行echo
对象,必须检索message属性并返回字符串。
//execute post
$result = curl_exec($ch);
// Decode object ()
$result = json_decode($result);
// Message error
echo $result->error->message;
curl_close($ch);
参考:Object
我必须下载cacert.pem并将其添加到php.ini文件中,然后重新启动WAMP服务器才能使其正常工作。 curl调用出错。