diff --git a/browse.php b/browse.php
index 197beef..2cbbea4 100755
--- a/browse.php
+++ b/browse.php
@@ -138,7 +138,7 @@ class BrowseDispatcher extends KTStandardDispatcher {
                 }
             }
 
-            $this->aBreadcrumbs = array_merge($this->aBreadcrumbs, KTBrowseUtil::breadcrumbsForFolder($oFolder));
+            $this->aBreadcrumbs = kt_array_merge($this->aBreadcrumbs, KTBrowseUtil::breadcrumbsForFolder($oFolder));
             $this->oFolder =& $oFolder;
 
 
diff --git a/lib/browse/Criteria.inc b/lib/browse/Criteria.inc
index a20d1d2..3c98396 100644
--- a/lib/browse/Criteria.inc
+++ b/lib/browse/Criteria.inc
@@ -635,7 +635,7 @@ class GenericMetadataCriterion extends BrowseCriterion {
     function searchSQL ($aRequest) {
         $p = parent::searchSQL($aRequest, false); // handle not ourselves.
         $p[0] = join(' AND ', array($p[0], "$this->sSearchTable.document_field_id = ?"));
-        $p[1] = array_merge($p[1], array($this->iID));
+        $p[1] = kt_array_merge($p[1], array($this->iID));
 
         // handle the boolean "not" stuff.
         $want_invert = KTUtil::arrayGet($aRequest, $this->getWidgetBase() . '_not');
diff --git a/lib/users/User.inc b/lib/users/User.inc
index 8bda0c9..d73fe71 100644
--- a/lib/users/User.inc
+++ b/lib/users/User.inc
@@ -192,7 +192,7 @@ class User extends KTEntity {
 
     	if (!isset($dashlets->left)) $dashlets->left = array();
     	if (!isset($dashlets->right)) $dashlets->right = array();
-    	$mergedlist = array_merge($dashlets->left,$dashlets->right);
+    	$mergedlist = kt_array_merge($dashlets->left,$dashlets->right);
     	
     	
     	$knownlist = array();
diff --git a/lib/util/ktutil.inc b/lib/util/ktutil.inc
index 6112cb3..fc5a469 100644
--- a/lib/util/ktutil.inc
+++ b/lib/util/ktutil.inc
@@ -143,12 +143,12 @@ class KTUtil {
                 $aNewParams = array();
                 foreach ($oSomething[1] as $oParam) {
                     if (is_array($oParam)) {
-                        $aNewParams = array_merge($aNewParams, $oParam);
+                        $aNewParams = kt_array_merge($aNewParams, $oParam);
                     } else {
                         $aNewParams[] = $oParam;
                     }
                 }
-                $aParams = array_merge($aParams, $aNewParams);
+                $aParams = kt_array_merge($aParams, $aNewParams);
             } else {
                 return PEAR::raiseError(_kt("Weird WhereClause passed"));
             }
@@ -429,7 +429,7 @@ class KTUtil {
         if (!is_array($aAddOptions)) {
             $aAddOptions = array();
         }
-        return array_merge($aStartOptions, $aAddOptions);
+        return kt_array_merge($aStartOptions, $aAddOptions);
     }
     // }}}
 
diff --git a/plugins/ktstandard/KTEmail.php b/plugins/ktstandard/KTEmail.php
index d46fa6d..56aa5a8 100644
--- a/plugins/ktstandard/KTEmail.php
+++ b/plugins/ktstandard/KTEmail.php
@@ -58,7 +58,7 @@ function sendGroupEmails($aGroupIDs, $oDocument, $sComment = '', $bAttachDocumen
 		    $default->log->info('sendingEmail to group ' . $oDestGroup->getName());
 		    // for each group, retrieve all the users
 		    foreach($aDestinationGroups as $oGroup){
-		    	$aUsers = array_merge($aUsers, $oGroup->getUsers());
+		    	$aUsers = kt_array_merge($aUsers, $oGroup->getUsers());
 		    }
 
 		    // FIXME: this should send one email with multiple To: users
@@ -370,7 +370,7 @@ class KTDocumentEmailAction extends KTDocumentAction {
 		$aGroups = GroupUtil::listGroupsForUser($this->oUser);
 		$aMembers = array();
 		foreach ($aGroups as $oGroup) {
-		    $aMembers = array_merge($aMembers, $oGroup->getMembers());
+		    $aMembers = kt_array_merge($aMembers, $oGroup->getMembers());
 		}
 		$aUsers = array();
 		$aUserIds = array();
diff --git a/plugins/rssplugin/KTrss.inc.php b/plugins/rssplugin/KTrss.inc.php
index 7c66159..2a946e4 100644
--- a/plugins/rssplugin/KTrss.inc.php
+++ b/plugins/rssplugin/KTrss.inc.php
@@ -68,7 +68,7 @@ class KTrss{
     	$folders=KTrss::getFolders($iUserId);
     	if (is_null($documents)) $documents=array();
     	if (is_null($folders)) $folders=array();
-    	$aFullList = array_merge($documents,$folders );
+    	$aFullList = kt_array_merge($documents,$folders );
     	if($aFullList){
     		$internalFeed = KTrss::arrayToXML($aFullList);
     		$response = rss2arrayBlock($internalFeed);
@@ -163,7 +163,7 @@ class KTrss{
         if ($aFolderList) {
             foreach($aFolderList as $folderElement){
 		        $folder_id = $folderElement['id'];
-		        $aFolderTransactions = array_merge($aFolderTransactions, KTrss::getFolderTransactions($folder_id));
+		        $aFolderTransactions = kt_array_merge($aFolderTransactions, KTrss::getFolderTransactions($folder_id));
 	    	}
         }
         if ($aFolderTransactions){
diff --git a/view.php b/view.php
index 290f0d5..4084d28 100755
--- a/view.php
+++ b/view.php
@@ -142,7 +142,7 @@ class ViewDocumentDispatcher extends KTStandardDispatcher {
         );
 
         $this->oDocument =& $oDocument;
-        $this->aBreadcrumbs = array_merge($this->aBreadcrumbs, KTBrowseUtil::breadcrumbsForDocument($oDocument, $aOptions));
+        $this->aBreadcrumbs = kt_array_merge($this->aBreadcrumbs, KTBrowseUtil::breadcrumbsForDocument($oDocument, $aOptions));
         $this->oPage->setBreadcrumbDetails(_kt("document details"));
         $this->addPortlets("Document Details");
 
@@ -282,7 +282,7 @@ class ViewDocumentDispatcher extends KTStandardDispatcher {
                 "folderaction" => "browse",
             );
     
-        $this->aBreadcrumbs = array_merge($this->aBreadcrumbs, KTBrowseUtil::breadcrumbsForDocument($oDocument, $aOptions));
+        $this->aBreadcrumbs = kt_array_merge($this->aBreadcrumbs, KTBrowseUtil::breadcrumbsForDocument($oDocument, $aOptions));
         $this->oPage->setBreadcrumbDetails(_kt("compare versions"));
     
         $comparison_version = sanitizeForSQL(KTUtil::arrayGet($_REQUEST, 'fComparisonVersion'));