標籤:blog http io os ar for strong 資料 sp
這也是個老生常談的話題了,上午花了點時間把這個問題整理了一下。
一般來說用PHP來類比post提交資料有三種方法,file_get_contents、curl和socket。
寫了個公用函數,專門用來列印post資料:
[php] view plaincopy
- <?php
- function pr() {
- $params = func_get_args();
- foreach ($params as $key => $value) {
- echo "<pre>";
- print_r($value);
- echo "</pre>";
- }
- }
先寫一個post.php,用來接收post資料並列印出來:
[php] view plaincopy
- <?php
- require dirname(__FILE__).‘/function.php‘;
-
- if (isset($_POST) && !empty($_POST)) {
- pr($_POST);
- } else {
- pr("NO POST DATA!");
- }
下面是用file_get_contents來類比post:
[php] view plaincopy
- <?php
- require dirname(__FILE__).‘/function.php‘;
-
- function file_get_contents_post($url, $post) {
- $options = array(
- ‘http‘ => array(
- ‘method‘ => ‘POST‘,
- // ‘content‘ => ‘name=caiknife&[email protected]‘,
- ‘content‘ => http_build_query($post),
- ),
- );
-
- $result = file_get_contents($url, false, stream_context_create($options));
-
- return $result;
- }
-
- $data = file_get_contents_post("http://www.a.com/post/post.php", array(‘name‘=>‘caiknife‘, ‘email‘=>‘[email protected]‘));
-
- var_dump($data);
很簡單是吧?再來看看curl類比post:
[php] view plaincopy
- <?php
- require dirname(__FILE__).‘/function.php‘;
-
- function curl_post($url, $post) {
- $options = array(
- CURLOPT_RETURNTRANSFER => true,
- CURLOPT_HEADER => false,
- CURLOPT_POST => true,
- CURLOPT_POSTFIELDS => $post,
- );
-
- $ch = curl_init($url);
- curl_setopt_array($ch, $options);
- $result = curl_exec($ch);
- curl_close($ch);
- return $result;
- }
-
- $data = curl_post("http://www.a.com/post/post.php", array(‘name‘=>‘caiknife‘, ‘email‘=>‘[email protected]‘));
-
- var_dump($data);
最後是用socket來類比post:
[php] view plaincopy
- <?php
- require dirname(__FILE__).‘/function.php‘;
-
- function socket_post($url, $post) {
- $urls = parse_url($url);
- if (!isset($urls[‘port‘])) {
- $urls[‘port‘] = 80;
- }
-
- $fp = fsockopen($urls[‘host‘], $urls[‘port‘], $errno, $errstr);
- if (!$fp) {
- echo "$errno, $errstr";
- exit();
- }
-
- $post = http_build_query($post);
- $length = strlen($post);
- $header = <<<HEADER
- POST {$urls[‘path‘]} HTTP/1.1
- Host: {$urls[‘host‘]}
- Content-Type: application/x-www-form-urlencoded
- Content-Length: {$length}
- Connection: close
-
- {$post}
- HEADER;
-
- fwrite($fp, $header);
- $result = ‘‘;
- while (!feof($fp)) {
- // receive the results of the request
- $result .= fread($fp, 512);
- }
- $result = explode("\r\n\r\n", $result, 2);
- return $result[1];
- }
-
- $data = socket_post("http://www.a.com/post/post.php", array(‘name‘=>‘caiknife‘, ‘email‘=>‘[email protected]‘));
-
- var_dump($data);
這三種方法最後看到的內容都是一樣的,但是在是用socket的時候,發送header資訊時必須要注意header的完整資訊,比如content type和content length必須要有,connection: close和post資料之間要空一行,等等;而通過socket取得的內容是包含了header資訊的,要處理一下才能獲得真正的內容。
php-post類比(摘自網路)