使用PHP模拟post提交数据
分类： PHP LAMP 2013-04-13 12:03 3954人阅读 评论(0) 收藏 举报 CurlsocketPHP
这也是个老生常谈的话题了，上午花了点时间把这个问题整理了一下。
一般来说用PHP来模拟post提交数据有三种方法，file_get_contents、curl和socket。
写了个公用函数，专门用来打印post数据：
- <?php
- function pr() {
- $params = func_get_args();
- foreach ($params as $key => $value) {
- echo “<pre>”;
- print_r($value);
- echo “</pre>”;
- }
- }
<?php
function pr() {
$params = func_get_args();
foreach ($params as $key => $value) {
echo "<pre>";
print_r($value);
echo "</pre>";
}
}
先写一个post.php，用来接收post数据并打印出来：
- <?php
- require dirname(__FILE__).’/function.php’;
- if (isset($_POST) && !empty($_POST)) {
- pr($_POST);
- } else {
- pr(“NO POST DATA!”);
- }
<?php
require dirname(__FILE__).'/function.php';if (isset($_POST) && !empty($_POST)) {
pr($_POST);
} else {
pr("NO POST DATA!");
}
下面是用file_get_contents来模拟post：
- <?php
- require dirname(__FILE__).’/function.php’;
- function file_get_contents_post($url, $post) {
- $options = array(
- ‘http’ => array(
- ‘method’ => ‘POST’,
- // ‘content’ => ‘name=caiknife&email=caiknife@gmail.com’,
- ‘content’ => http_build_query($post),
- ),
- );
- $result = file_get_contents($url, false, stream_context_create($options));
- return $result;
- }
- $data = file_get_contents_post(“http://www.a.com/post/post.php”, array(‘name’=>’caiknife’, ’email’=>’caiknife@gmail.com’));
- var_dump($data);
<?php
require dirname(__FILE__).'/function.php';function file_get_contents_post($url, $post) {
$options = array(
'http' => array(
'method' => 'POST',
// 'content' => 'name=caiknife&email=caiknife@gmail.com',
'content' => http_build_query($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'=>'caiknife@gmail.com'));var_dump($data);
很简单是吧？再来看看curl模拟post：
- <?php
- require dirname(__FILE__).’/function.php’;
- function curl_post($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;
- }
- $data = curl_post(“http://www.a.com/post/post.php”, array(‘name’=>’caiknife’, ’email’=>’caiknife@gmail.com’));
- var_dump($data);
<?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'=>'caiknife@gmail.com'));var_dump($data);
最后是用socket来模拟post：
- <?php
- require dirname(__FILE__).’/function.php’;
- function socket_post($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];
- }
- $data = socket_post(“http://www.a.com/post/post.php”, array(‘name’=>’caiknife’, ’email’=>’caiknife@gmail.com’));
- var_dump($data);
<?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'=>'caiknife@gmail.com'));var_dump($data);
这三种方法最后看到的内容都是一样的，但是在是用socket的时候，发送header信息时必须要注意header的完整信息，比如content
type和content length必须要有，connection:
close和post数据之间要空一行，等等；而通过socket取得的内容是包含了header信息的，要处理一下才能获得真正的内容。
