【轉】怎麼用PHP傳送HTTP請求（POST請求、GET請求）?

範長法@三月軟體發表於2014-12-25
PHPHTTP

file_get_contents版本：

 1 /**
 2  * 傳送post請求
 3  * @param string $url 請求地址
 4  * @param array $post_data post鍵值對資料
 5  * @return string
 6  */
 7 function send_post($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 // 超時時間（單位:s）
16         )
17     );
18     $context = stream_context_create($options);
19     $result = file_get_contents($url, false, $context);
20 
21     return $result;
22 }

實戰經驗：

當我利用上述程式碼給另一臺伺服器傳送http請求時，發現，如果伺服器處理請求時間過長，本地的PHP會中斷請求，即所謂的超時中斷，第一個懷疑的是PHP本身執行時間的超過限制，但想想也不應該，因為老早就按照這篇文章設定了“PHP執行時間限制”（【推薦】PHP上傳檔案大小限制大全 ），仔細琢磨，想想，應該是http請求本身的一個時間限制，於是乎，就想到了怎麼給http請求時間限制搞大一點。。。。。。檢視PHP手冊，果真有個引數 “ timeout ”，預設不知道多大，當把它的值設大一點，問題得已解決，弱弱地做個筆記~~~

 

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  * 傳送HTTP請求
 3  *
 4  * @param string $url 請求地址
 5  * @param string $method 請求方式 GET/POST
 6  * @param string $refererUrl 請求來源地址
 7  * @param array $data 傳送資料
 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 }

呼叫 WCF介面 的一個例子：$json = restRequest($r_url,'POST', json_encode($data));

 

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

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