php curl_exec 返回空
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php curl_exec returns empty
提问by user3912994
$ch = curl_init();
curl_setopt($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
i am confused why $exec does not return anything ,i am new to curl please help, thanks in advance
我很困惑为什么 $exec 不返回任何内容，我是 curl 的新手，请帮忙，提前致谢
回答by DarkBee
curl_execwill return falsewhen the request failed. Adjust your function to this :
curl_exec将false在请求失败时返回。将您的功能调整为：
$ch = curl_init();
curl_setopt($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);
This way u'll see the curl error
这样你就会看到 curl 错误
回答by J Marshall Presnell
You're trying to access a HTTP response code before you actually make the HTTP call. Reverse the execution as follows:
您正在尝试在实际进行 HTTP 调用之前访问 HTTP 响应代码。逆向执行如下：
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch , CURLINFO_HTTP_CODE); // this results 0 every time
回答by C??ng Nghiêm
The result return 0 mean that you can not connect to the server so please recheck your proxy and increase the timeout :)
结果返回 0 表示您无法连接到服务器，因此请重新检查您的代理并增加超时时间:)
回答by aymen zitoun
Try:
尝试：
curl_setopt($ch, CURLOPT_TIMEOUT, 50);
Maybe the response is longer than 10.
也许响应长于 10。
I had the same issue, I solved like this.
我有同样的问题，我是这样解决的。
