PHP curl超時問題

    今天調試一個很是老的代碼時  發現nginx服務器超時  改了下nginx配置

    發現是後臺腳本一直等待  排查到最後發現是curl 超時引發的等待

    具體解決方案：

curl_setopt( $this->ch, CURLOPT_URL, $url );
curl_setopt( $this->ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt( $this->ch, CURLOPT_TIMEOUT_MS,3000);      //  3秒超時
curl_setopt( $this->ch, CURLOPT_HEADER, 0 );
curl_setopt( $this->ch, CURLOPT_SSL_VERIFYPEER, false );
curl_setopt( $this->ch, CURLOPT_SSL_VERIFYHOST, false );

 

    PHP curl的超時主要有4個參數 原文以下;

          There's a very distinctive difference between these two configurations within cURL. I'll try to define them for you, and then provide you a very common example which I share to people who I teach about cURL.

CURLOPT_CONNECTTIMEOUT is designed to tell the script how long to wait to make a successful connection to the server before starting to buffer the output. A destination's server which may be overloaded, offline or crashed would probably make this setting become useful.

CURLOPT_TIMEOUT is designed to tell the script how long to wait to receive a completely buffered output from the server. A destination's huge file, slow connection speeds or slow rendering would probably make this setting become useful.

A good example of where these will both apply to, is when you're telling cURL to download a MP3 file. CURLOPT_CONNECTTIMEOUT would be set at about 10 seconds which would mean that if no response is provided within 10 seconds then the script will abort, and CURLOPT_TIMEOUT would be set at about 100 seconds which would mean if the MP3 has not downloaded within 100 seconds then abort the script. It's the best way of explaining it to developers.

具體是：

   CURLOPT_CONNECTTIMEOUT 

     創建鏈接時候的超時設置

  CURLOPT_TIMEOUT 

     接收信息時的超時設置

   CURLOPT_CONNECTTIMEOUT_MS,   CURLOPT_TIMEOUT_MS 意思相同 只是超時單位爲毫秒了。。。