further update to global memory cache arrays

- remove initialisation of caches in inc/pageutils.php
- add global declaration to init.php to support init.php
  being included from within a function, e.g. unit testing

  ;-)

- minor change to utf8_substr, remove non-essential brackets
  added as part of an earlier patch

darcs-hash:20060829134806-9b6ab-ab15191344a83be664c412403dc84a24fa2253a2.gz

inc/init.php

@@ -24,8 +24,8 @@
   else { error_reporting(DOKU_E_LEVEL); }
 
   // init memory caches
-  $cache_wikifn = array();
-  $cache_cleanid = array();
+  global $cache_wikifn; $cache_wikifn = array();
+  global $cache_wikifn; $cache_cleanid = array();
 
   //prepare config array()
   global $conf;

inc/pageutils.php

@@ -58,10 +58,6 @@ function getID($param='id',$clean=true){
   return $id;
 }
 
-// function result cache for cleanID
-global $cache_cleanid;
-$cache_cleanid = array();
-
 /**
  * Remove unwanted chars from ID
  *
@@ -145,10 +141,6 @@ function noNS($id) {
   }
 }
 
-// function result cache for wikiFN
-global $cache_wikifn;
-$cache_wikifn = array();
-
 /**
  * returns the full path to the datafile specified by ID and
  * optional revision

inc/utf8.php

@@ -137,9 +137,9 @@ function utf8_strlen($string){
 function utf8_substr($str, $offset, $length = null) {
     if(UTF8_MBSTRING){
         if( $length === null ){
-            return (mb_substr($str, $offset));
+            return mb_substr($str, $offset);
         }else{
-            return (mb_substr($str, $offset, $length));
+            return mb_substr($str, $offset, $length);
         }
     }