【转】怎么用PHP发送HTTP请求(POST请求、GET请求)?

file_get_contents版本:

 1 /**
 2  * 发送post请求
 3  * @param string $url 请求地址
 4  * @param array $post_data post键值对数据
 5  * @return string
 6  */
 7 function send_post($url, $post_data) {
 8 
 9     $postdata = http_build_query($post_data);
10     $options = array(
11         'http' =>; array(
12             'method' =>; 'POST',
13             'header' =>; 'Content-type:application/x-www-form-urlencoded',
14             'content' =>; $postdata,
15             'timeout' =>; 15 * 60 // 超时时间(单位:s)
16         )
17     );
18     $context = stream_context_create($options);
19     $result = file_get_contents($url, false, $context);
20 
21     return $result;
22 }

实战经验:

当我利用上述代码给另一台服务器发送http请求时,发现,如果服务器处理请求时间过长,本地的PHP会中断请求,即所谓的超时中断,第一个怀疑的是PHP本身执行时间的超过限制,但想想也不应该,因为老早就按照这篇文章设置了“PHP执行时间限制”(【推荐】PHP上传文件大小限制大全 ),仔细琢磨,想想,应该是http请求本身的一个时间限制,于是乎,就想到了怎么给http请求时间限制搞大一点。。。。。。查看PHP手册,果真有个参数 “ timeout ”,默认不知道多大,当把它的值设大一点,问题得已解决,弱弱地做个笔记~~~

 

Socket版本:

 1 /**
 2  * Socket版本
 3  * 使用方法:
 4  * $post_string = "app=socket&version=beta";
 5  * request_by_socket('blog.snsgou.com', '/restServer.php', $post_string);
 6  */
 7 function request_by_socket($remote_server,$remote_path,$post_string,$port = 80,$timeout = 30) {
 8     $socket = fsockopen($remote_server, $port, $errno, $errstr, $timeout);
 9     if (!$socket) die("$errstr($errno)");
10     fwrite($socket, "POST $remote_path HTTP/1.0");
11     fwrite($socket, "User-Agent: Socket Example");
12     fwrite($socket, "HOST: $remote_server");
13     fwrite($socket, "Content-type: application/x-www-form-urlencoded");
14     fwrite($socket, "Content-length: " . (strlen($post_string) + 8) . "");
15     fwrite($socket, "Accept:*/*");
16     fwrite($socket, "");
17     fwrite($socket, "mypost=$post_string");
18     fwrite($socket, "");
19     $header = "";
20     while ($str = trim(fgets($socket, 4096))) {
21         $header .= $str;
22     }
23 
24     $data = "";
25     while (!feof($socket)) {
26         $data .= fgets($socket, 4096);
27     }
28 
29     return $data;
30 }

Curl版本:

 1 /**
 2  * Curl版本
 3  * 使用方法:
 4  * $post_string = "app=request&version=beta";
 5  * request_by_curl('http://blog.snsgou.com/restServer.php', $post_string);
 6  */
 7 function request_by_curl($remote_server, $post_string) {
 8     $ch = curl_init();
 9     curl_setopt($ch, CURLOPT_URL, $remote_server);
10     curl_setopt($ch, CURLOPT_POSTFIELDS, 'mypost=' . $post_string);
11     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
12     curl_setopt($ch, CURLOPT_USERAGENT, "snsgou.com's CURL Example beta");
13     $data = curl_exec($ch);
14     curl_close($ch);
15 
16     return $data;
17 }

Curl版本(2)

 1 /**
 2  * 发送HTTP请求
 3  *
 4  * @param string $url 请求地址
 5  * @param string $method 请求方式 GET/POST
 6  * @param string $refererUrl 请求来源地址
 7  * @param array $data 发送数据
 8  * @param string $contentType 
 9  * @param string $timeout
10  * @param string $proxy
11  * @return boolean
12  */
13 function send_request($url, $data, $refererUrl = '', $method = 'GET', $contentType = 'application/json', $timeout = 30, $proxy = false) {
14     $ch = null;
15     if('POST' === strtoupper($method)) {
16         $ch = curl_init($url);
17         curl_setopt($ch, CURLOPT_POST, 1);
18         curl_setopt($ch, CURLOPT_HEADER,0 );
19         curl_setopt($ch, CURLOPT_FRESH_CONNECT, 1);
20         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
21         curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
22         curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
23         if ($refererUrl) {
24             curl_setopt($ch, CURLOPT_REFERER, $refererUrl);
25         }
26         if($contentType) {
27             curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:'.$contentType));
28         }
29         if(is_string($data)){
30             curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
31         } else {
32             curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
33         }
34     } else if('GET' === strtoupper($method)) {
35         if(is_string($data)) {
36             $real_url = $url. (strpos($url, '?') === false ? '?' : ''). $data;
37         } else {
38             $real_url = $url. (strpos($url, '?') === false ? '?' : ''). http_build_query($data);
39         }
40 
41         $ch = curl_init($real_url);
42         curl_setopt($ch, CURLOPT_HEADER, 0);
43         curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:'.$contentType));
44         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
45         curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
46         if ($refererUrl) {
47             curl_setopt($ch, CURLOPT_REFERER, $refererUrl);
48         }
49     } else {
50         $args = func_get_args();
51         return false;
52     }
53 
54     if($proxy) {
55         curl_setopt($ch, CURLOPT_PROXY, $proxy);
56     }
57     $ret = curl_exec($ch);
58     $info = curl_getinfo($ch);
59     $contents = array(
60             'httpInfo' => array(
61                     'send' => $data,
62                     'url' => $url,
63                     'ret' => $ret,
64                     'http' => $info,
65             )
66     );
67 
68     curl_close($ch);
69     return $ret;
70 }

调用 WCF接口 的一个例子:$json = restRequest($r_url,'POST', json_encode($data));

 

转至:http://blog.snsgou.com/post-161.html

posted @ 2014-12-25 17:32  非著名程序师  阅读(3958)  评论(0编辑  收藏