RewriteEngine On
RewriteRule ^monsters/.*$ /index.php [L,QSA]

<?php
header("Content-Type: application/json; charset=utf-8");
$handle = fopen('php://input','r');
$jsonInput = fgets($handle);
$json = json_decode($jsonInput);
fclose($handle);

$url = 'http://monsters-superlight.dragonquest.jp'.$_SERVER['REQUEST_URI'];
$content = $jsonInput;
$headers1 = getallheaders();
while (list ($ht, $hv) = each ($headers1)) {
$headers[] = "$ht: $hv";
}
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl, CURLOPT_POST,1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $content);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($curl, CURLOPT_MAXREDIRS, 100);
curl_setopt($curl, CURLOPT_TIMEOUT, 10);
curl_setopt($curl, CURLOPT_AUTOREFERER, TRUE);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
$response = curl_exec($curl);
curl_close($curl);
echo $response;
?>