- revert feature 564: log the login of each user; but add the possibility to be

done by a plugin
- create a "standard" way to define PHP functions that we use but might not be
available in the current php version
- when a comment is rejected (spam, anti-flood etc), put the content back to the
browser in case there is a real user behind it
- now a comment can be entered only if the page was retrieved between 2 seconds
ago and 1 hour ago

git-svn-id: http://piwigo.org/svn/trunk@1744 68402e56-0260-453c-a942-63ccdbb3a9ee

include/common.inc.php

@@ -121,6 +121,17 @@ if (!defined('PHPWG_INSTALLED'))
   exit;
 }
 
+foreach( array(
+  'array_intersect_key', //PHP 5 >= 5.1.0RC1
+  'hash_hmac', //(hash) - enabled by default as of PHP 5.1.2
+  ) as $func)
+{
+  if (!function_exists($func))
+  {
+    include_once(PHPWG_ROOT_PATH . 'include/php_compat/'.$func.'.php');
+  }
+}
+
 include(PHPWG_ROOT_PATH . 'include/config_default.inc.php');
 @include(PHPWG_ROOT_PATH. 'include/config_local.inc.php');
 include(PHPWG_ROOT_PATH . 'include/constants.php');