我确实在跨域中发布了一些信息。我通过下面的代码实现了这一点
<?php
function do_post_request($sendingurl, $data, $optional_headers = null) {
$params = array(
'http' => array(
'method' => 'POST',
'url' => $data
)
);
if ($optional_headers !== null) {
$params['http']['header'] = $optional_headers;
}
$ctx = stream_context_create($params);
$fp = @fopen($sendingurl, 'rb', false, $ctx);
if (!$fp) {
throw new Exception("Problem with $sendingurl, $php_errormsg");
}
$response = @stream_get_contents($fp);
if ($response === false) {
throw new Exception("Problem reading data from $sendingurl, $php_errormsg");
}
return $response;
}
$response = do_post_request('http://mag16.playtrickz.com/testing.php','http%3A%2F%2Fwww.facebook.com');
echo $response;
但它不起作用。POST请求成功时：它将显示其值否则将显示：未找到任何数据。为什么它不起作用，以及如何使它们起作用。
以下是我如何编写您的函数：
function do_post_request($url, $data = NULL, $optional_headers = NULL) {
// Build a body string from an array
$content = (is_array($data)) ? http_build_query($data) : '';
// Parse the array of headers and strip values we will be setting
$headers = array();
if (is_array($optional_headers)) {
foreach ($optional_headers as $name => $value) {
if (!in_array(strtolower($name), array('content-type', 'content-length', 'connection'))) {
$headers[$name] = $value;
}
}
}
// Add our pre-set headers
$headers['Content-Type'] = 'application/x-www-form-urlencoded';
$headers['Content-Length'] = strlen($content);
$headers['Connection'] = 'close';
// Build headers into a string
$header = array();
foreach ($headers as $name => $value) {
if (is_array($value)) {
foreach ($value as $multi) {
$header[] = "$name: $multi";
}
} else {
$header[] = "$name: $value";
}
}
$header = implode("'r'n", $header);
// Create the stream context
$params = array(
'http' => array(
'method' => 'POST',
'header' => $header,
'content' => $content
)
);
$ctx = stream_context_create($params);
// Make the request
$fp = @fopen($url, 'rb', FALSE, $ctx);
if (!$fp) {
throw new Exception("Problem with $url, $php_errormsg");
}
$response = @stream_get_contents($fp);
if ($response === FALSE) {
throw new Exception("Problem reading data from $url, $php_errormsg");
}
return $response;
}
这是重新构建的，以便将要发送到服务器的数据和标头作为关联数组传入。因此，您可以构建一个数组，看起来像是希望$_POST在远程脚本中查找，并将其传入。您也可以传递一个附加标头的数组来发送，但函数会自动添加一个Content-Type、Content-Length和Connection标头。
所以你的请求会被这样调用：
$data = array(
'url' => 'http://www.facebook.com/'
);
$response = do_post_request('http://mag16.playtrickz.com/testing.php', $data);
echo $response;