php socket 模拟 post 学习函数

引用:

/*-----------------------------------------------------------
*功能：使用PHP socke 向指定页面提交数据
*
*作者：Honghe.c
*
*说明：post($url, $data)
*
* $url = 'http://www.xxx.com:8080/login.php';
* $data[user] = 'hong';
* $data[pass] = 'xowldo';
* echo post($url, $data);
*-----------------------------------------------------------*/

function post($url, $data) {

$url = parse_url($url);
if (!$url) return "couldn't parse url";
if (!isset($url['port'])) { $url['port'] = ""; }
if (!isset($url['query'])) { $url['query'] = ""; }

$encoded = "";

while (list($k,$v) = each($data)) {
$encoded .= ($encoded ? "&" : "");
$encoded .= rawurlencode($k)."=".rawurlencode($v);
}

$fp = fsockopen($url['host'], $url['port'] ? $url['port'] : 80);
if (!$fp) return "Failed to open socket to $url[host]";

fputs($fp, sprintf("POST %s%s%s HTTP/1.0\n", $url['path'], $url['query'] ? "?" : "", $url['query']));
fputs($fp, "Host: $url[host]\n");
fputs($fp, "Content-type: application/x-www-form-urlencoded\n");
fputs($fp, "Content-length: " . strlen($encoded) . "\n");
fputs($fp, "Connection: close\n\n");

fputs($fp, "$encoded\n");

$line = fgets($fp,1024);
if (!eregi("^HTTP/1\.. 200", $line)) return;

$results = ""; $inheader = 1;
while(!feof($fp)) {
$line = fgets($fp,1024);
if ($inheader && ($line == "\n" || $line == "\r\n")) {
$inheader = 0;
}
elseif (!$inheader) {
$results .= $line;
}
}
fclose($fp);

return $results;
}

$url = 'http://127.0.0.1:80/pp.php';
$data['user'] = 'hong';
$data['pass'] = 'xowldo';
echo post($url, $data);

?>