php模拟post行为代码总结

GET行为比较简单，POST比较复杂一些。这里提供两种方法供选择：第一：手写代码。第二：利用HttpClient php类库

第一种方法：

PHP代码
$flag = 0;
//要post的数据
$argv = array(
var1=>abc,
var2=>你好吗);
//构造要post的字符串
foreach ($argv as $key=>$value) {
if ($flag!=0) {
$params .= "&";
$flag = 1;
}
$params.= $key."="; $params.= urlencode($value);
$flag = 1;
}
$length = strlen($params);
//创建socket连接
$fp = fsockopen("127.0.0.1",80,$errno,$errstr,10) or exit($errstr."--->".$errno);
//构造post请求的头
$header = "POST /mobile/try.php HTTP/1.1";
$header .= "Host:127.0.0.1";
$header .= "Referer:/mobile/sendpost.php";
$header .= "Content-Type: application/x-www-form-urlencoded";
$header .= "Content-Length: ".$length."";
$header .= "Connection: Close";
//添加post的字符串
$header .= $params."";
//发送post的数据
fputs($fp,$header);
$inheader = 1;
while (!feof($fp)) {
$line = fgets($fp,1024); //去除请求包的头只显示页面的返回数据
if ($inheader && ($line == " " || $line == "")) {
$inheader = 0;
}
if ($inheader == 0) {
echo $line;
}
}
fclose($fp);
?>

第二种方法是：使用httpclient类

PHP代码
$pageContents = HttpClient::quickPost(http://example.com/someForm, array(
name => Some Name,
email => [e-mail]
));

使用httpclient类库，可以去官方下载最新的类库，官方地址为：http://scripts.incutio.com/httpclient/index.php

附加一些点php httpclient的其他几个用法

静态方法获取网页：

PHP代码
$pageContents = HttpClient::quickGet(http://example.com/);

Get方法获取

PHP代码
$client = new HttpClient(example.com);
if (!$client->get(/)) {
die(An error occurred: .$client->getError());
}
$pageContents = $client->getContent();

带调试的Get方法获取

PHP代码
$client = new HttpClient(example.com);
$client->setDebug(true);
if (!$client->get(/)) {
die(An error occurred: .$client->getError());
}
$pageContents = $client->getContent();

带自动转向的Get方法

PHP代码
$client = new HttpClient(www.amazon.com);
$client->setDebug(true);
if (!$client->get(/)) {
die(An error occurred: .$client->getError());
}
$pageContents = $client->getContent();

检查页面是否存在

PHP代码
$client = new HttpClient(example.com);
$client->setDebug(true);
if (!$client->get(/thispagedoesnotexist)) {
die(An error occurred: .$client->getError());
}
if ($client->getStatus() == 404) {
echo Page does not exist!;
}
$pageContents = $client->getContent();

伪造客户端

PHP代码
$client = new HttpClient(exa