PHP - 将发布数据发送到URL并获得响应

时间:2013-12-31 13:38:46

标签: php codeigniter curl twitch

我很难尝试将POST数据发送到twitch api(https://api.twitch.com/kraken/oauth2/token)并返回json代码...这是我当前的代码:

$this->config->load("config", true);
$url = "https://api.twitch.tv/kraken/oauth2/token";
$postvars = "client_id=" . $this->config->item('twitch_clientid', 'config') . "&client_secret=" . $this->config->item('twitch_secret', 'config') . "&grant_type=user_read&redirect_uri=" . $this->config->item('twitch_redirect', 'config') . "&code=" . $key;

$temp = curl_init($url);
curl_setopt($temp, CURLOPT_POST, 1);
curl_setopt($temp, CURLOPT_POSTFIELDS, $postvars);
curl_setopt($temp, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($temp, CURLOPT_HEADER, 0);
curl_setopt($temp, CURLOPT_RETURNTRANSFER, 1);
$result = json_decode(@file_get_contents(curl_exec($temp)), true);

但是......显然这不是我应该这样做的方式。第一次使用curl。
错误:

A PHP Error was encountered 
Severity: Warning
Message: file_get_contents(): Filename cannot be empty
Filename: controllers/user.php
Line Number: 37

预期结果:

{
  "access_token": "[user access token]",
  "scope":[array of requested scopes]
}

1 个答案:

答案 0 :(得分:1)

错误在这一行:

$result = json_decode(@file_get_contents(curl_exec($temp)), true);

当returntransfer开启时,curl_exec返回false或数据(http://pl1.php.net/curl_exec),因此代码应该更像

if (! $data = curl_exec($ch)) { 
    //ERROR 
} else {
    $result = json_decode($data, true);
}
curl_close($ch); 

您始终可以将选项VERBOSE设置为true,以便更好地查看发送到服务器的内容。