php curl_exec返回空

php curl

2022-08-30 22:50:35

 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, $url);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 curl_setopt($ch, CURLOPT_PROXY, $proxy); // $proxy is ip of proxy server
 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
 curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
 curl_setopt($ch, CURLOPT_TIMEOUT, 10);
 $httpCode = curl_getinfo($ch , CURLINFO_HTTP_CODE); // this results 0 every time
 echo '<br> curl'.$ch; //this line outputs resource id#5
 $exec = stripslashes(curl_exec($ch)); 
 echo '<br> exec'.curl_exec($ch); //this results blank

我很困惑为什么$exec不返回任何东西，我是新的卷曲请帮忙，提前感谢

答案 1

请求失败时，curl_exec将返回。将您的函数调整为：false

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_PROXY, $proxy); // $proxy is ip of proxy server
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);

$httpCode = curl_getinfo($ch , CURLINFO_HTTP_CODE); // this results 0 every time
$response = curl_exec($ch);

if ($response === false) 
    $response = curl_error($ch);

echo stripslashes($response);

curl_close($ch);

这样，您将看到卷曲错误

答案 2

在实际进行 HTTP 调用之前，您正在尝试访问 HTTP 响应代码。按如下方式反转执行：

$response = curl_exec($ch);
$httpCode = curl_getinfo($ch , CURLINFO_HTTP_CODE); // this results 0 every time