new PHP minimum requirement is now 5.3.3

that's the version in Debian old stable

inc/infoutils.php

@@ -114,13 +114,13 @@ function check(){
     if ($INFO['isadmin'] || $INFO['ismanager']){
         msg('DokuWiki version: '.getVersion(),1);
 
-        if(version_compare(phpversion(),'5.2.0','<')){
-            msg('Your PHP version is too old ('.phpversion().' vs. 5.2.0+ needed)',-1);
+        if(version_compare(phpversion(),'5.3.3','<')){
+            msg('Your PHP version is too old ('.phpversion().' vs. 5.3.3+ needed)',-1);
         }else{
             msg('PHP version '.phpversion(),1);
         }
     } else {
-        if(version_compare(phpversion(),'5.2.0','<')){
+        if(version_compare(phpversion(),'5.3.3','<')){
             msg('Your PHP version is too old',-1);
         }
     }

install.php

@@ -538,8 +538,8 @@ function check_functions(){
     global $lang;
     $ok = true;
 
-    if(version_compare(phpversion(),'5.2.0','<')){
-        $error[] = sprintf($lang['i_phpver'],phpversion(),'5.2.0');
+    if(version_compare(phpversion(),'5.3.3','<')){
+        $error[] = sprintf($lang['i_phpver'],phpversion(),'5.3.3');
         $ok = false;
     }