fixed date format for google sitemaps

darcs-hash:20051127110118-7ad00-691b4d529004ef0571896c3d326361970a584409.gz

lib/exe/indexer.php

@@ -113,7 +113,7 @@ function runSitemapper(){
 
         print '  <url>'.NL;
         print '    <loc>'.wl($id,'',true).'</loc>'.NL;
-        print '    <lastmod>'.date('Y-m-d\TH:i:s',$date).'</lastmod>'.NL;
+        print '    <lastmod>'.date_iso8601($date).'</lastmod>'.NL;
         print '  </url>'.NL;
     }
     print '</urlset>'.NL;
@@ -125,6 +125,21 @@ function runSitemapper(){
     return true;
 }
 
+/**
+ * Formats a timestamp as ISO 8601 date
+ *
+ * @author <ungu at terong dot com>
+ * @link http://www.php.net/manual/en/function.date.php#54072
+ */
+function date_iso8601($int_date) {
+   //$int_date: current date in UNIX timestamp
+   $date_mod = date('Y-m-d\TH:i:s', $int_date);
+   $pre_timezone = date('O', $int_date);
+   $time_zone = substr($pre_timezone, 0, 3).":".substr($pre_timezone, 3, 2);
+   $date_mod .= $time_zone;
+   return $date_mod;
+}
+
 /**
  * Just send a 1x1 pixel blank gif to the browser
  *