public static function build_http_query_multi($params)
{
if (!$params) {
return '';
}
// Urlencode both keys and values
$keys = array_keys($params);
$values = array_values($params);
$params = array_combine($keys, $values);
// Parameters are sorted by name, using lexicographical byte value ordering.
// Ref: Spec: 9.1.1 (1)
uksort($params, 'strcmp');
$pairs = array();
self::$boundary = $boundary = uniqid('------------------');
$MPboundary = '--' . $boundary;
$endMPboundary = $MPboundary . '--';
$multipartbody = '';
foreach ($params as $parameter => $value) {
if ($value[0] == '@') {
$url = ltrim($value, '@');
$content = file_get_contents($url);
$filename = reset(explode('?', basename($url)));
$mime = self::get_image_mime($url);
$multipartbody .= $MPboundary . "\r\n";
$multipartbody .= 'Content-Disposition: form-data; name="' . $parameter . '"; filename="' . $filename . '"' . "\r\n";
$multipartbody .= 'Content-Type: ' . $mime . "\r\n\r\n";
$multipartbody .= $content . "\r\n";
} else {
$multipartbody .= $MPboundary . "\r\n";
$multipartbody .= 'content-disposition: form-data; name="' . $parameter . "\"\r\n\r\n";
$multipartbody .= $value . "\r\n";
}
}
$multipartbody .= $endMPboundary . "\r\n";
//微信服务器不加\r\n会提示media data is missing
return $multipartbody;
}
