php socket 提交表单示例代码

<?php
function sock_post($url, $data='') {
    $url = parse_url($url);
    $url['scheme'] || $url['scheme'] = 'http';
    $url['host'] || $url['host'] = $_SERVER['HTTP_HOST'];
    $url['path'][0] != '/' && $url['path'] = '/'.$url['path'];  
    $query = $data;
    if(is_array($data)) $query = http_build_query($data); 
    $fp = @fsockopen($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($fp, "Content-length: " . strlen($query) . "/n");
    fputs($fp, "Connection: close/n/n"); 
    fputs($fp, "$query/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;
}
$re = sock_post('http://localhost/direct_post/get_post.php?id=1',array('wel'=>'hello'));
echo $re;
?>