class Qq_api { private $list; function __construct() { $this->list['dsp_id'] = DSP_ID; $this->list['token'] = TOKEN; } function curl_post($end = '') { $ch = curl_init(URL.$end); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST'); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); } function sync() { $this->curl_post('sync'); $arr = array(); curl_setopt($ch, CURLOPT_POSTFIELDS,$arr); $result = curl_exec($ch); var_dump($result); } }

提示：Warning: curl_setopt(): supplied argument is not a valid cURL handle resource in C:\AppServ\www\qq_api2.php on line 45

我是在方法里调用curl（），好像curl（）只能在_construct（）里面初始化吧，如果是为什么？