使用PHP模拟post提交数据

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] view plaincopyprint?

<?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] view
plaincopyprint?

<?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] view
plaincopyprint?

<?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] view
plaincopyprint?

<?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] view
plaincopyprint?

<?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。