php 8.2 fix: api

public_html/api/index.php

@@ -75,7 +75,7 @@
      * Check authorization in the http request header and age of timestamp
      * On a failed check the request will be terminated
      * @global int $iMaxAge         max allowed age
-     * @param type $sProjectSecret
+     * @param string $sProjectSecret
      * @return boolean
      */
     function _checkAuth($sProjectSecret){
@@ -95,7 +95,7 @@
         $sGotReq=$_SERVER['REQUEST_URI'];
 
 
-        $sMyData="${sGotMethod}\n${sGotReq}\n${sGotDate}\n";
+        $sMyData="$sGotMethod\n$sGotReq\n$sGotDate\n";
         $sMyHash= base64_encode(hash_hmac("sha1", $sMyData, $sProjectSecret));
 
         _wd('Hash: '.$sGotHash.' -- from header');