The Curl function in PHP

1. Installation configuration for Curl:
Installation under Linux:
http://php.net/manual/zh/curl.setup.php
Installation under Windows:
Open:
Extension=php_curl.dll//Note the corresponding version of the DLL file

2. Curl Use steps

<?php//1. Initialize $curl = Curl_init ();//2. Configuration related parameter information curl_setoptcurl_setopt ($curl, constant parameters, optional parameters);//3. Execute $res = curl_exec ($curl);//4. Close link curl_close ($curl);? >

For specific parameter usage information, see: http://php.net/manual/zh/book.curl.php

3. Partial Use cases
3.1 certificate authentication needs to be filtered when using HTTPS

<?php $this->curl->options (Array (Curlopt_ssl_verifypeer = False, Curlopt_ssl_verifyhost = false)); >

3.2 Use the following method when transferring an interface using the body (typically, the authentication method for Java)

/** * Normal function Delivery method (certificate skipped) * Call Base: * $url = "Https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_toke N= $accessToken "; * $res = Json_decode ($this->httpget ($url));    */private function HttpGet ($url) {$curl = Curl_init ();    curl_setopt ($curl, Curlopt_returntransfer, true);    curl_setopt ($curl, Curlopt_timeout, 500);    curl_setopt ($curl, Curlopt_ssl_verifypeer, false);    curl_setopt ($curl, Curlopt_ssl_verifyhost, false);    curl_setopt ($curl, Curlopt_url, $url);    $res = curl_exec ($curl);    Curl_close ($curl);  return $res; }/** * Java Body Authentication Transfer method * Call Base: * $result = List ($return _code, $return _content) = $this->http_post_data ($u   RL, Json_encode (Array ("Key" = $pass)));   * $res = Json_decode ($return _content);   * $return _code = $res->rspmsg;        */Public Function Http_post_data ($url, $data _string) {$ch = Curl_init ();        curl_setopt ($ch, Curlopt_post, 1);        curl_setopt ($ch, Curlopt_url, $url); curl_setopt ($ch, Curlopt_postfields, $data _string); curl_setopt ($ch, Curlopt_httpheader, Array (' Content-type:application/json; Charset=utf-8 ', ' content-length: ' .        strlen ($data _string)));        Ob_start ();        Curl_exec ($ch);        $return _content = ob_get_contents ();        Ob_end_clean ();        $return _code = Curl_getinfo ($ch, Curlinfo_http_code);    Return Array ($return _code, $return _content); }

Debug mode of curl in 3.3 ci frame

$this->curl->debug ();

3.4 CURL Analog file Upload (sound file upload)

$soundurl = ' absolute address of your local sound path such as:/data/sound/ins.amr ';      Initialize      $ch = Curl_init ();      File path address      $furl = "@". $soundurl;      $post _data = Array (          "media" = = $furl      );      Submit file Address      $url = "http://file.api.weixin.qq.com/cgi-bin/media/upload?access_token=". $token. " &type=voice ";      Set Variable      curl_setopt ($ch, Curlopt_url, $url);      curl_setopt ($ch, Curlopt_returntransfer, 1);//Whether the execution result is returned, 0 is returned, 1 is not returned      curl_setopt ($ch, Curlopt_postfields, $post _data);      Execute and get results      $output = curl_exec ($ch);      if ($outopt = = = FALSE) {          echo "<br/>", "CUrl Error:". Curl_error ($ch);      }      Curl_close ($ch);      $obj = Json_decode ($output);

3.5 Local download of sound files

$soundfile = $this->curl->simple_get ("http://file.api.weixin.qq.com/cgi-bin/media/get?access_token=". $ token. " &media_id= ". $soundid);      $soundurl = "./sound/". $id. ". Amr ";      File_put_contents ($soundurl, $soundfile);

The Curl function in PHP