引用：http://blog.sjzycxx.cn/post/435/

1.使用 file_get_contents()

/**
* 发送post请求
* @param string $url 请求地址
* @param array $post_data post键值对数据
* @return string
*/
function send_post($url, $post_data) {

$postdata = http_build_query($post_data);

$options = array(
'http' => array(
'method' => 'POST',
'header' => 'Content-type:application/x-www-form-urlencoded',
'content' => $postdata,
'timeout' => 15 * 60 // 超时时间（单位:s）
)
);
$context = stream_context_create($options);
$result = file_get_contents($url, false, $context);

return $result;
}

//使用方法，需要2个参数，URL和参数，post的参数得自己构造，是数组的格式
$post_data = array(
'username' => 'stclair2201',
'password' => 'handan'
);
send_post('http://www.qianyunlai.com', $post_data);

2.Socket版本

<?php
/**
* Socket版本
* 使用方法：
* $post_string = "app=socket&version=beta";
* request_by_socket('chajia8.com', '/restServer.php', $post_string);
*/

function request_by_socket($remote_server,$remote_path,$post_string,$port = 80,$timeout = 30) {
$socket = fsockopen($remote_server, $port, $errno, $errstr, $timeout);
if (!$socket) die("$errstr($errno)");
fwrite($socket, "POST $remote_path HTTP/1.0");
fwrite($socket, "User-Agent: Socket Example");
fwrite($socket, "HOST: $remote_server");
fwrite($socket, "Content-type: application/x-www-form-urlencoded");
fwrite($socket, "Content-length: " . （strlen($post_string) + 8） . "");
fwrite($socket, "Accept:*/*");
fwrite($socket, "");
fwrite($socket, "mypost=$post_string");
fwrite($socket, "");
$header = "";
while ($str = trim(fgets($socket, 4096))) {
$header .= $str;
}

$data = "";
while (!feof($socket)) {
$data .= fgets($socket, 4096);
}

return $data;
}
?>

3.Curl版本

<?php
/**
* Curl版本
* 使用方法：
* $post_string = "app=request&version=beta";
* request_by_curl('http://www.qianyunlai.com/restServer.php', $post_string);
*/

function request_by_curl($remote_server, $post_string) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $remote_server);
curl_setopt($ch, CURLOPT_POSTFIELDS, 'mypost=' . $post_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERAGENT, "qianyunlai.com's CURL Example beta");
$data = curl_exec($ch);
curl_close($ch);

return $data;
}
?>

巴特西

php发送post请求的三种方法

1.使用 file_get_contents()

2.Socket版本

3.Curl版本

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