diff --git a/app/code/core/Mage/Admin/Model/Resource/Roles.php b/app/code/core/Mage/Admin/Model/Resource/Roles.php
index 3c578b97b36..d86d1bcad8f 100644
--- a/app/code/core/Mage/Admin/Model/Resource/Roles.php
+++ b/app/code/core/Mage/Admin/Model/Resource/Roles.php
@@ -169,7 +169,7 @@ private function _updateRoleUsersAcl(Mage_Admin_Model_Roles $role)
         $users  = $this->getRoleUsers($role);
         $rowsCount = 0;
 
-        if (sizeof($users) > 0) {
+        if (count($users)) {
             $bind  = array('reload_acl_flag' => 1);
             $where = array('user_id IN(?)' => $users);
             $rowsCount = $write->update($this->_usersTable, $bind, $where);
diff --git a/app/code/core/Mage/Admin/Model/Resource/User.php b/app/code/core/Mage/Admin/Model/Resource/User.php
index 2ee9b879451..536c3ac9497 100644
--- a/app/code/core/Mage/Admin/Model/Resource/User.php
+++ b/app/code/core/Mage/Admin/Model/Resource/User.php
@@ -327,7 +327,7 @@ public function add(Mage_Core_Model_Abstract $user)
         $dbh = $this->_getWriteAdapter();
 
         $aRoles = $this->hasAssigned2Role($user);
-        if (sizeof($aRoles) > 0) {
+        if (count($aRoles)) {
             foreach ($aRoles as $idx => $data) {
                 $conditions = array(
                     'role_id = ?' => $data['role_id'],
diff --git a/app/code/core/Mage/Adminhtml/Block/Api/Role/Grid/User.php b/app/code/core/Mage/Adminhtml/Block/Api/Role/Grid/User.php
index d23525d5499..7cc4333765f 100644
--- a/app/code/core/Mage/Adminhtml/Block/Api/Role/Grid/User.php
+++ b/app/code/core/Mage/Adminhtml/Block/Api/Role/Grid/User.php
@@ -53,14 +53,12 @@ protected function _addColumnFilterToCollection($column)
             }
             if ($column->getFilter()->getValue()) {
                 $this->getCollection()->addFieldToFilter('user_id', array('in'=>$inRoleIds));
-            }
-            else {
-                if($inRoleIds) {
+            } else {
+                if ($inRoleIds) {
                     $this->getCollection()->addFieldToFilter('user_id', array('nin'=>$inRoleIds));
                 }
             }
-        }
-        else {
+        } else {
             parent::_addColumnFilterToCollection($column);
         }
         return $this;
@@ -154,29 +152,29 @@ public function getGridUrl()
         return $this->getUrl('*/*/editrolegrid', array('rid' => $roleId));
     }
 
-    protected function _getUsers($json=false)
+    protected function _getUsers($json = false)
     {
-        if ( $this->getRequest()->getParam('in_role_user') != "" ) {
+        if ($this->getRequest()->getParam('in_role_user') != "") {
             return (int)$this->getRequest()->getParam('in_role_user');
         }
         $roleId = ( $this->getRequest()->getParam('rid') > 0 ) ? $this->getRequest()->getParam('rid') : Mage::registry('RID');
         $users  = Mage::getModel('api/roles')->setId($roleId)->getRoleUsers();
-        if (sizeof($users) > 0) {
-            if ( $json ) {
-                $jsonUsers = Array();
-                foreach($users as $usrid) $jsonUsers[$usrid] = 0;
+        if (count($users)) {
+            if ($json) {
+                $jsonUsers = array();
+                foreach ($users as $usrid) {
+                    $jsonUsers[$usrid] = 0;
+                }
                 return Mage::helper('core')->jsonEncode((object)$jsonUsers);
             } else {
                 return array_values($users);
             }
         } else {
-            if ( $json ) {
+            if ($json) {
                 return '{}';
             } else {
                 return array();
             }
         }
     }
-
 }
-
diff --git a/app/code/core/Mage/Adminhtml/Block/Dashboard/Graph.php b/app/code/core/Mage/Adminhtml/Block/Dashboard/Graph.php
index f4aab047633..8672db23994 100644
--- a/app/code/core/Mage/Adminhtml/Block/Dashboard/Graph.php
+++ b/app/code/core/Mage/Adminhtml/Block/Dashboard/Graph.php
@@ -276,7 +276,7 @@ public function getChartUrl($directUrl = true)
 
         // process each string in the array, and find the max length
         foreach ($this->getAllSeries() as $index => $serie) {
-            $localmaxlength[$index] = sizeof($serie);
+            $localmaxlength[$index] = count($serie);
             $localmaxvalue[$index] = max($serie);
             $localminvalue[$index] = min($serie);
         }
@@ -318,7 +318,7 @@ public function getChartUrl($directUrl = true)
 
         foreach ($this->getAllSeries() as $index => $serie) {
             $thisdataarray = $serie;
-            for ($j = 0; $j < sizeof($thisdataarray); $j++) {
+            for ($j = 0; $j < count($thisdataarray); $j++) {
                 $currentvalue = $thisdataarray[$j];
                 if (is_numeric($currentvalue)) {
                     $ylocation = $yorigin + $currentvalue;
@@ -341,7 +341,7 @@ public function getChartUrl($directUrl = true)
         $valueBuffer = array();
         $rangeBuffer = "";
 
-        if (sizeof($this->_axisLabels) > 0) {
+        if (count($this->_axisLabels)) {
             $params['chxt'] = implode(',', array_keys($this->_axisLabels));
             $indexid = 0;
             foreach ($this->_axisLabels as $idx=>$labels){
@@ -380,15 +380,15 @@ public function getChartUrl($directUrl = true)
                     $tmpstring = implode('|', $this->_axisLabels[$idx]);
 
                     $valueBuffer[] = $indexid . ":|" . $tmpstring;
-                    if (sizeof($this->_axisLabels[$idx]) > 1) {
-                        $deltaX = 100/(sizeof($this->_axisLabels[$idx])-1);
+                    if (count($this->_axisLabels[$idx]) > 1) {
+                        $deltaX = 100/(count($this->_axisLabels[$idx])-1);
                     } else {
                         $deltaX = 100;
                     }
                 } else if ($idx == 'y') {
                     $valueBuffer[] = $indexid . ":|" . implode('|', $yLabels);
-                    if (sizeof($yLabels)-1) {
-                        $deltaY = 100/(sizeof($yLabels)-1);
+                    if (count($yLabels)-1) {
+                        $deltaY = 100/(count($yLabels)-1);
                     } else {
                         $deltaY = 100;
                     }
diff --git a/app/code/core/Mage/Adminhtml/Block/Permissions/Role/Grid/User.php b/app/code/core/Mage/Adminhtml/Block/Permissions/Role/Grid/User.php
index 82edff86be0..5482f4284f2 100644
--- a/app/code/core/Mage/Adminhtml/Block/Permissions/Role/Grid/User.php
+++ b/app/code/core/Mage/Adminhtml/Block/Permissions/Role/Grid/User.php
@@ -161,7 +161,7 @@ protected function _getUsers($json=false)
         }
         $roleId = ( $this->getRequest()->getParam('rid') > 0 ) ? $this->getRequest()->getParam('rid') : Mage::registry('RID');
         $users  = Mage::getModel('admin/roles')->setId($roleId)->getRoleUsers();
-        if (sizeof($users) > 0) {
+        if (count($users)) {
             if ( $json ) {
                 $jsonUsers = Array();
                 foreach($users as $usrid) $jsonUsers[$usrid] = 0;
diff --git a/app/code/core/Mage/Adminhtml/Block/Report/Grid.php b/app/code/core/Mage/Adminhtml/Block/Report/Grid.php
index 92309019b27..438aff6cad9 100644
--- a/app/code/core/Mage/Adminhtml/Block/Report/Grid.php
+++ b/app/code/core/Mage/Adminhtml/Block/Report/Grid.php
@@ -128,7 +128,7 @@ protected function _prepareCollection()
             $this->_setFilterValues($data);
         } else if ($filter && is_array($filter)) {
             $this->_setFilterValues($filter);
-        } else if(0 !== sizeof($this->_defaultFilter)) {
+        } else if(count($this->_defaultFilter)) {
             $this->_setFilterValues($this->_defaultFilter);
         }
         /** @var $collection Mage_Reports_Model_Resource_Report_Collection */
diff --git a/app/code/core/Mage/Adminhtml/Block/Sales/Order/Create/Giftmessage.php b/app/code/core/Mage/Adminhtml/Block/Sales/Order/Create/Giftmessage.php
index 7e760380062..32b6e6ac20d 100644
--- a/app/code/core/Mage/Adminhtml/Block/Sales/Order/Create/Giftmessage.php
+++ b/app/code/core/Mage/Adminhtml/Block/Sales/Order/Create/Giftmessage.php
@@ -68,7 +68,7 @@ public function getItems()
             }
         }
 
-        if(sizeof($items)) {
+        if(count($items)) {
             return $items;
         }
 
diff --git a/app/code/core/Mage/Adminhtml/Block/System/Currency/Rate/Matrix.php b/app/code/core/Mage/Adminhtml/Block/System/Currency/Rate/Matrix.php
index c6334b2212c..d1cb36306c8 100644
--- a/app/code/core/Mage/Adminhtml/Block/System/Currency/Rate/Matrix.php
+++ b/app/code/core/Mage/Adminhtml/Block/System/Currency/Rate/Matrix.php
@@ -84,7 +84,7 @@ protected function _prepareRates($array)
         foreach ($array as $key => $rate) {
             foreach ($rate as $code => $value) {
                 $parts = explode('.', $value);
-                if( sizeof($parts) == 2 ) {
+                if( count($parts) === 2 ) {
                     $parts[1] = str_pad(rtrim($parts[1], 0), 4, '0', STR_PAD_RIGHT);
                     $array[$key][$code] = join('.', $parts);
                 } elseif( $value > 0 ) {
diff --git a/app/code/core/Mage/Adminhtml/Block/Widget/Grid.php b/app/code/core/Mage/Adminhtml/Block/Widget/Grid.php
index cb2a420a149..3e217812f12 100644
--- a/app/code/core/Mage/Adminhtml/Block/Widget/Grid.php
+++ b/app/code/core/Mage/Adminhtml/Block/Widget/Grid.php
@@ -536,7 +536,7 @@ protected function _prepareCollection()
             else if ($filter && is_array($filter)) {
                 $this->_setFilterValues($filter);
             }
-            else if(0 !== sizeof($this->_defaultFilter)) {
+            else if(count($this->_defaultFilter)) {
                 $this->_setFilterValues($this->_defaultFilter);
             }
 
diff --git a/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Column/Renderer/Action.php b/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Column/Renderer/Action.php
index 84e6ba6b710..5b7eb6cd46c 100644
--- a/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Column/Renderer/Action.php
+++ b/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Column/Renderer/Action.php
@@ -48,7 +48,7 @@ public function render(Varien_Object $row)
             return '&nbsp;';
         }
 
-        if(sizeof($actions)==1 && !$this->getColumn()->getNoLink()) {
+        if(count($actions) === 1 && !$this->getColumn()->getNoLink()) {
             foreach ($actions as $action) {
                 if ( is_array($action) ) {
                     return $this->_toLinkHtml($action, $row);
diff --git a/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Massaction/Abstract.php b/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Massaction/Abstract.php
index da8dfbcd32a..9c2febd8834 100644
--- a/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Massaction/Abstract.php
+++ b/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Massaction/Abstract.php
@@ -129,7 +129,7 @@ public function getItemsJson()
      */
     public function getCount()
     {
-        return sizeof($this->_items);
+        return count($this->_items);
     }
 
     /**
diff --git a/app/code/core/Mage/Adminhtml/Helper/Dashboard/Abstract.php b/app/code/core/Mage/Adminhtml/Helper/Dashboard/Abstract.php
index 759b77079f5..43cb0c9da8a 100644
--- a/app/code/core/Mage/Adminhtml/Helper/Dashboard/Abstract.php
+++ b/app/code/core/Mage/Adminhtml/Helper/Dashboard/Abstract.php
@@ -70,7 +70,7 @@ public function getItems()
 
         public function getCount()
         {
-            return sizeof($this->getItems());
+            return count($this->getItems());
         }
 
         public function getColumn($index)
diff --git a/app/code/core/Mage/Adminhtml/Helper/Dashboard/Data.php b/app/code/core/Mage/Adminhtml/Helper/Dashboard/Data.php
index 63744d13b20..93a059b05b3 100644
--- a/app/code/core/Mage/Adminhtml/Helper/Dashboard/Data.php
+++ b/app/code/core/Mage/Adminhtml/Helper/Dashboard/Data.php
@@ -58,7 +58,7 @@ public function getStores()
      */
     public function countStores()
     {
-        return sizeof($this->_stores->getItems());
+        return count($this->_stores->getItems());
     }
 
     /**
diff --git a/app/code/core/Mage/Adminhtml/controllers/Api/UserController.php b/app/code/core/Mage/Adminhtml/controllers/Api/UserController.php
index 2c6cba314fc..977931919b3 100644
--- a/app/code/core/Mage/Adminhtml/controllers/Api/UserController.php
+++ b/app/code/core/Mage/Adminhtml/controllers/Api/UserController.php
@@ -156,11 +156,11 @@ public function saveAction()
                 if ( $uRoles = $this->getRequest()->getParam('roles', false) ) {
                     /*parse_str($uRoles, $uRoles);
                     $uRoles = array_keys($uRoles);*/
-                    if ( 1 == sizeof($uRoles) ) {
+                    if (count($uRoles) === 1) {
                         $model->setRoleIds($uRoles)
                             ->setRoleUserId($model->getUserId())
                             ->saveRelations();
-                    } else if ( sizeof($uRoles) > 1 ) {
+                    } else if (count($uRoles) > 1) {
                         //@FIXME: stupid fix of previous multi-roles logic.
                         //@TODO:  make proper DB upgrade in the future revisions.
                         $rs = array();
diff --git a/app/code/core/Mage/Adminhtml/controllers/IndexController.php b/app/code/core/Mage/Adminhtml/controllers/IndexController.php
index bd0f175b3f5..dc55a6fdae9 100644
--- a/app/code/core/Mage/Adminhtml/controllers/IndexController.php
+++ b/app/code/core/Mage/Adminhtml/controllers/IndexController.php
@@ -144,7 +144,7 @@ public function globalSearchAction()
                         ->getResults();
                     $items = array_merge_recursive($items, $results);
                 }
-                $totalCount = sizeof($items);
+                $totalCount = count($items);
             }
         }
 
diff --git a/app/code/core/Mage/Adminhtml/controllers/Permissions/UserController.php b/app/code/core/Mage/Adminhtml/controllers/Permissions/UserController.php
index d223971966b..9ad6ea70e6c 100644
--- a/app/code/core/Mage/Adminhtml/controllers/Permissions/UserController.php
+++ b/app/code/core/Mage/Adminhtml/controllers/Permissions/UserController.php
@@ -158,11 +158,11 @@ public function saveAction()
                 if ( $uRoles = $this->getRequest()->getParam('roles', false) ) {
                     /*parse_str($uRoles, $uRoles);
                     $uRoles = array_keys($uRoles);*/
-                    if ( 1 == sizeof($uRoles) ) {
+                    if (count($uRoles) === 1) {
                         $model->setRoleIds($uRoles)
                             ->setRoleUserId($model->getUserId())
                             ->saveRelations();
-                    } else if ( sizeof($uRoles) > 1 ) {
+                    } else if (count($uRoles) > 1) {
                         //@FIXME: stupid fix of previous multi-roles logic.
                         //@TODO:  make proper DB upgrade in the future revisions.
                         $rs = array();
diff --git a/app/code/core/Mage/Adminhtml/controllers/PollController.php b/app/code/core/Mage/Adminhtml/controllers/PollController.php
index 52998ceff48..393ed7bbd1e 100644
--- a/app/code/core/Mage/Adminhtml/controllers/PollController.php
+++ b/app/code/core/Mage/Adminhtml/controllers/PollController.php
@@ -162,7 +162,7 @@ public function validateAction()
 
                 $answers = $this->getRequest()->getParam('answer');
 
-                if( !is_array($answers) || sizeof($answers) == 0 ) {
+                if( !is_array($answers) || !count($answers) ) {
                     Mage::throwException(Mage::helper('adminhtml')->__('Please, add some answers to this poll first.'));
                 }
 
diff --git a/app/code/core/Mage/Adminhtml/controllers/System/CurrencyController.php b/app/code/core/Mage/Adminhtml/controllers/System/CurrencyController.php
index f5aa69e9674..ecd09a747aa 100644
--- a/app/code/core/Mage/Adminhtml/controllers/System/CurrencyController.php
+++ b/app/code/core/Mage/Adminhtml/controllers/System/CurrencyController.php
@@ -78,7 +78,7 @@ public function fetchRatesAction()
             }
             $rates = $importModel->fetchRates();
             $errors = $importModel->getMessages();
-            if( sizeof($errors) > 0 ) {
+            if(count($errors)) {
                 foreach ($errors as $error) {
                     Mage::getSingleton('adminhtml/session')->addWarning($error);
                 }
diff --git a/app/code/core/Mage/Api/Model/Resource/Roles.php b/app/code/core/Mage/Api/Model/Resource/Roles.php
index dc5f130b2a8..46b0009ed21 100644
--- a/app/code/core/Mage/Api/Model/Resource/Roles.php
+++ b/app/code/core/Mage/Api/Model/Resource/Roles.php
@@ -140,7 +140,7 @@ private function _updateRoleUsersAcl(Mage_Api_Model_Roles $role)
     {
         $users  = $this->getRoleUsers($role);
         $rowsCount = 0;
-        if (sizeof($users) > 0) {
+        if (count($users)) {
             $rowsCount = $this->_getWriteAdapter()->update(
                 $this->_usersTable,
                 array('reload_acl_flag' => 1),
diff --git a/app/code/core/Mage/Api/Model/Resource/User.php b/app/code/core/Mage/Api/Model/Resource/User.php
index 7430970ab1d..5bb73b84118 100644
--- a/app/code/core/Mage/Api/Model/Resource/User.php
+++ b/app/code/core/Mage/Api/Model/Resource/User.php
@@ -346,7 +346,7 @@ public function add(Mage_Core_Model_Abstract $user)
     {
         $adapter = $this->_getWriteAdapter();
         $aRoles  = $this->hasAssigned2Role($user);
-        if (sizeof($aRoles) > 0) {
+        if (count($aRoles)) {
             foreach ($aRoles as $idx => $data) {
                 $adapter->delete(
                     $this->getTable('api/role'),
diff --git a/app/code/core/Mage/Api2/controllers/Adminhtml/Api2/RoleController.php b/app/code/core/Mage/Api2/controllers/Adminhtml/Api2/RoleController.php
index b03c50032c6..4178291e00d 100644
--- a/app/code/core/Mage/Api2/controllers/Adminhtml/Api2/RoleController.php
+++ b/app/code/core/Mage/Api2/controllers/Adminhtml/Api2/RoleController.php
@@ -330,7 +330,7 @@ protected function _getUsers($id)
         $resource = $role->getResource();
         $users = $resource->getRoleUsers($role);
 
-        if (sizeof($users) == 0) {
+        if (!count($users)) {
             $users = array();
         }
 
diff --git a/app/code/core/Mage/Catalog/Helper/Image.php b/app/code/core/Mage/Catalog/Helper/Image.php
index c193308dd42..57a7251cc66 100644
--- a/app/code/core/Mage/Catalog/Helper/Image.php
+++ b/app/code/core/Mage/Catalog/Helper/Image.php
@@ -573,7 +573,7 @@ protected function getImageFile()
     protected function parseSize($string)
     {
         $size = explode('x', strtolower($string));
-        if (sizeof($size) == 2) {
+        if (count($size) === 2) {
             return array(
                 'width' => ($size[0] > 0) ? $size[0] : null,
                 'heigth' => ($size[1] > 0) ? $size[1] : null,
diff --git a/app/code/core/Mage/Catalog/Model/Convert/Parser/Product.php b/app/code/core/Mage/Catalog/Model/Convert/Parser/Product.php
index a4a06dc731f..7121c7fc351 100644
--- a/app/code/core/Mage/Catalog/Model/Convert/Parser/Product.php
+++ b/app/code/core/Mage/Catalog/Model/Convert/Parser/Product.php
@@ -388,7 +388,7 @@ public function parse()
         }
 
         // set importinted to adaptor
-        if (sizeof($inventoryFields) > 0) {
+        if (count($inventoryFields)) {
             Mage::register('current_imported_inventory', $inventoryFields);
             //$this->setInventoryItems($inventoryFields);
         } // end setting imported to adaptor
diff --git a/app/code/core/Mage/Catalog/Model/Entity/Product/Attribute/Design/Options/Container.php b/app/code/core/Mage/Catalog/Model/Entity/Product/Attribute/Design/Options/Container.php
index 3112eea043f..12a401e1c5f 100644
--- a/app/code/core/Mage/Catalog/Model/Entity/Product/Attribute/Design/Options/Container.php
+++ b/app/code/core/Mage/Catalog/Model/Entity/Product/Attribute/Design/Options/Container.php
@@ -49,7 +49,7 @@ public function __construct()
     public function getOptionText($value)
     {
         $options = $this->getAllOptions();
-        if (sizeof($options) > 0) {
+        if (count($options)) {
             foreach ($options as $option) {
                 if (isset($option['value']) && $option['value'] == $value) {
                     return $option['label'];
diff --git a/app/code/core/Mage/Catalog/Model/Resource/Abstract.php b/app/code/core/Mage/Catalog/Model/Resource/Abstract.php
index efa924ea60d..3ce1b421a23 100644
--- a/app/code/core/Mage/Catalog/Model/Resource/Abstract.php
+++ b/app/code/core/Mage/Catalog/Model/Resource/Abstract.php
@@ -592,7 +592,7 @@ public function getAttributeRawValue($entityId, $attribute, $store)
 
         if (!is_array($attribute)) {
             $attribute = array($attribute);
-        } elseif (sizeof($attribute) > 1) {
+        } elseif (count($attribute) > 1) {
             $returnArray = true;
         }
 
@@ -685,7 +685,7 @@ public function getAttributeRawValue($entityId, $attribute, $store)
             }
         }
 
-        if (sizeof($attributesData) == 1 && !$returnArray) {
+        if (count($attributesData) === 1 && !$returnArray) {
             $_data = reset($attributesData);
             $attributesData = $_data;
         }
diff --git a/app/code/core/Mage/Core/Block/Abstract.php b/app/code/core/Mage/Core/Block/Abstract.php
index 0ac1ca6d3f1..e11e5b702ae 100644
--- a/app/code/core/Mage/Core/Block/Abstract.php
+++ b/app/code/core/Mage/Core/Block/Abstract.php
@@ -446,7 +446,7 @@ public function setChild($alias, $block)
         if ($block->getIsAnonymous()) {
             $suffix = $block->getAnonSuffix();
             if (empty($suffix)) {
-                $suffix = 'child' . sizeof($this->_children);
+                $suffix = 'child' . count($this->_children);
             }
             $blockName = $this->getNameInLayout() . '.' . $suffix;
 
diff --git a/app/code/core/Mage/Core/Controller/Varien/Action.php b/app/code/core/Mage/Core/Controller/Varien/Action.php
index d2be6b6b1cd..7c6e1b8c760 100644
--- a/app/code/core/Mage/Core/Controller/Varien/Action.php
+++ b/app/code/core/Mage/Core/Controller/Varien/Action.php
@@ -869,13 +869,13 @@ protected function _rewrite()
 
         if (!($rewrite->actions && $rewrite->actions->$action) || $rewrite->is('override_actions')) {
             $t = explode('/', (string)$rewrite->to);
-            if (sizeof($t)!==2 || empty($t[0]) || empty($t[1])) {
+            if (count($t)!==2 || empty($t[0]) || empty($t[1])) {
                 return false;
             }
             $t[2] = $action;
         } else {
             $t = explode('/', (string)$rewrite->actions->$action->to);
-            if (sizeof($t)!==3 || empty($t[0]) || empty($t[1]) || empty($t[2])) {
+            if (count($t)!==3 || empty($t[0]) || empty($t[1]) || empty($t[2])) {
                 return false;
             }
         }
diff --git a/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php b/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php
index eee5d90f58b..ec1f028e9a9 100644
--- a/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php
+++ b/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php
@@ -245,7 +245,7 @@ public function match(Zend_Controller_Request_Http $request)
         $request->setControllerModule($realModule);
 
         // set parameters from pathinfo
-        for ($i = 3, $l = sizeof($p); $i < $l; $i += 2) {
+        for ($i = 3, $l = count($p); $i < $l; $i += 2) {
             $request->setParam($p[$i], isset($p[$i+1]) ? urldecode($p[$i+1]) : '');
         }
 
diff --git a/app/code/core/Mage/Core/Model/Layout.php b/app/code/core/Mage/Core/Model/Layout.php
index ca2dc6fc8bc..ca726021cf0 100644
--- a/app/code/core/Mage/Core/Model/Layout.php
+++ b/app/code/core/Mage/Core/Model/Layout.php
@@ -445,7 +445,7 @@ public function createBlock($type, $name='', array $attributes = array())
             if (!empty($name)) {
                 $block->setAnonSuffix(substr($name, 1));
             }
-            $name = 'ANONYMOUS_'.sizeof($this->_blocks);
+            $name = 'ANONYMOUS_'.count($this->_blocks);
         } elseif (isset($this->_blocks[$name]) && Mage::getIsDeveloperMode()) {
             //Mage::throwException(Mage::helper('core')->__('Block with name "%s" already exists', $name));
         }
diff --git a/app/code/core/Mage/Core/Model/Resource/Email/Queue.php b/app/code/core/Mage/Core/Model/Resource/Email/Queue.php
index ea0533d58c0..857827661c6 100644
--- a/app/code/core/Mage/Core/Model/Resource/Email/Queue.php
+++ b/app/code/core/Mage/Core/Model/Resource/Email/Queue.php
@@ -101,7 +101,7 @@ public function wasEmailQueued(Mage_Core_Model_Email_Queue $queue)
                 $newEmails[$email] = array($email, $name, $type);
             }
             $diff = array_diff_key($newEmails, $oldEmails);
-            if (sizeof($diff) > 0) {
+            if (count($diff)) {
                 $queue->clearRecipients();
                 foreach ($diff as $recipient) {
                     list($email, $name, $type) = $recipient;
diff --git a/app/code/core/Mage/Cron/Model/Schedule.php b/app/code/core/Mage/Cron/Model/Schedule.php
index c0d9915235d..484fd79370a 100644
--- a/app/code/core/Mage/Cron/Model/Schedule.php
+++ b/app/code/core/Mage/Cron/Model/Schedule.php
@@ -73,7 +73,7 @@ public function _construct()
     public function setCronExpr($expr)
     {
         $e = preg_split('#\s+#', $expr, null, PREG_SPLIT_NO_EMPTY);
-        if (sizeof($e) < 5 || sizeof($e) > 6) {
+        if (count($e) < 5 || count($e) > 6) {
             throw Mage::exception('Mage_Cron', 'Invalid cron expression: '.$expr);
         }
 
@@ -144,7 +144,7 @@ public function matchCronExpression($expr, $num)
         // handle modulus
         if (strpos($expr, '/')!==false) {
             $e = explode('/', $expr);
-            if (sizeof($e)!==2) {
+            if (count($e)!==2) {
                 throw Mage::exception('Mage_Cron', "Invalid cron expression, expecting 'match/modulus': ".$expr);
             }
             if (!is_numeric($e[1])) {
@@ -163,7 +163,7 @@ public function matchCronExpression($expr, $num)
         } // handle range
         elseif (strpos($expr, '-')!==false) {
             $e = explode('-', $expr);
-            if (sizeof($e)!==2) {
+            if (count($e)!==2) {
                 throw Mage::exception('Mage_Cron', "Invalid cron expression, expecting 'from-to' structure: ".$expr);
             }
 
diff --git a/app/code/core/Mage/Customer/Block/Account/Navigation.php b/app/code/core/Mage/Customer/Block/Account/Navigation.php
index 3da3a39f8b2..7d9cdb53797 100644
--- a/app/code/core/Mage/Customer/Block/Account/Navigation.php
+++ b/app/code/core/Mage/Customer/Block/Account/Navigation.php
@@ -116,7 +116,7 @@ public function isActive($link)
     protected function _completePath($path)
     {
         $path = rtrim($path, '/');
-        switch (sizeof(explode('/', $path))) {
+        switch (count(explode('/', $path))) {
             case 1:
                 $path .= '/index';
                 // no break
diff --git a/app/code/core/Mage/Dataflow/Model/Convert/Container/Collection.php b/app/code/core/Mage/Dataflow/Model/Convert/Container/Collection.php
index 68d365aa116..9bf94ccbc7e 100644
--- a/app/code/core/Mage/Dataflow/Model/Convert/Container/Collection.php
+++ b/app/code/core/Mage/Dataflow/Model/Convert/Container/Collection.php
@@ -51,7 +51,7 @@ public function addItem($name, Mage_Dataflow_Model_Convert_Container_Interface $
             if ($item->getName()) {
                 $name = $item->getName();
             } else {
-                $name = sizeof($this->_items);
+                $name = count($this->_items);
             }
         }
 
diff --git a/app/code/core/Mage/Dataflow/Model/Convert/Parser/Csv.php b/app/code/core/Mage/Dataflow/Model/Convert/Parser/Csv.php
index cc9a66e013f..861fc74d661 100644
--- a/app/code/core/Mage/Dataflow/Model/Convert/Parser/Csv.php
+++ b/app/code/core/Mage/Dataflow/Model/Convert/Parser/Csv.php
@@ -164,7 +164,7 @@ public function parse()
 
     public function parseRow($i, $line)
     {
-        if (sizeof($line) == 1) return false;
+        if (count($line) === 1) return false;
 
         if (0==$i) {
             if ($this->getVar('fieldnames')) {
diff --git a/app/code/core/Mage/Dataflow/Model/Convert/Parser/Xml/Excel.php b/app/code/core/Mage/Dataflow/Model/Convert/Parser/Xml/Excel.php
index 06bc73b91b8..eb235637695 100644
--- a/app/code/core/Mage/Dataflow/Model/Convert/Parser/Xml/Excel.php
+++ b/app/code/core/Mage/Dataflow/Model/Convert/Parser/Xml/Excel.php
@@ -225,7 +225,7 @@ public function parse()
                 }
             }
             $data[$wsName] = $wsData;
-            $this->addException('Found worksheet "'.$wsName.'" with '.sizeof($wsData).' row(s)');
+            $this->addException('Found worksheet "'.$wsName.'" with '.count($wsData).' row(s)');
         }
         if ($wsName = $this->getVar('single_sheet')) {
             if (isset($data[$wsName])) {
diff --git a/app/code/core/Mage/Dataflow/Model/Profile.php b/app/code/core/Mage/Dataflow/Model/Profile.php
index 81afe0709bb..7470919204d 100644
--- a/app/code/core/Mage/Dataflow/Model/Profile.php
+++ b/app/code/core/Mage/Dataflow/Model/Profile.php
@@ -393,7 +393,7 @@ public function _parseGuiData()
         }
         $mapXml .= '<action type="dataflow/convert_mapper_column" method="map">' . $nl;
         $map = $p['map'][$this->getEntityType()];
-        if (sizeof($map['db']) > 0) {
+        if (count($map['db'])) {
             $from = $map[$import?'file':'db'];
             $to = $map[$import?'db':'file'];
             $mapXml .= '    <var name="map">' . $nl;
diff --git a/app/code/core/Mage/Directory/Model/Observer.php b/app/code/core/Mage/Directory/Model/Observer.php
index 5cb507396cc..a9700bba5b7 100644
--- a/app/code/core/Mage/Directory/Model/Observer.php
+++ b/app/code/core/Mage/Directory/Model/Observer.php
@@ -65,13 +65,13 @@ public function scheduledUpdateCurrencyRates($schedule)
         $rates = $importModel->fetchRates();
         $errors = $importModel->getMessages();
 
-        if (sizeof($errors) > 0) {
+        if (count($errors)) {
             foreach ($errors as $error) {
                 $importWarnings[] = Mage::helper('directory')->__('WARNING:') . ' ' . $error;
             }
         }
 
-        if (sizeof($importWarnings) == 0) {
+        if (!count($importWarnings)) {
             Mage::getModel('directory/currency')->saveRates($rates);
         } else {
             $translate = Mage::getSingleton('core/translate');
diff --git a/app/code/core/Mage/Directory/Model/Resource/Currency.php b/app/code/core/Mage/Directory/Model/Resource/Currency.php
index 2879592039c..15507d8cfe7 100644
--- a/app/code/core/Mage/Directory/Model/Resource/Currency.php
+++ b/app/code/core/Mage/Directory/Model/Resource/Currency.php
@@ -149,7 +149,7 @@ public function getAnyRate($currencyFrom, $currencyTo)
      */
     public function saveRates($rates)
     {
-        if (is_array($rates) && sizeof($rates) > 0) {
+        if (is_array($rates) && count($rates)) {
             $adapter = $this->_getWriteAdapter();
             $data    = array();
             foreach ($rates as $currencyCode => $rate) {
diff --git a/app/code/core/Mage/Eav/Model/Entity/Abstract.php b/app/code/core/Mage/Eav/Model/Entity/Abstract.php
index 95d0bd32431..a624a58d4a1 100644
--- a/app/code/core/Mage/Eav/Model/Entity/Abstract.php
+++ b/app/code/core/Mage/Eav/Model/Entity/Abstract.php
@@ -613,7 +613,7 @@ protected function _isApplicableAttribute($object, $attribute)
     public function walkAttributes($partMethod, array $args = array())
     {
         $methodArr = explode('/', $partMethod);
-        switch (sizeof($methodArr)) {
+        switch (count($methodArr)) {
             case 1:
                 $part   = 'attribute';
                 $method = $methodArr[0];
diff --git a/app/code/core/Mage/Eav/Model/Entity/Attribute/Source/Abstract.php b/app/code/core/Mage/Eav/Model/Entity/Attribute/Source/Abstract.php
index ac681826327..3ed8d5542ce 100644
--- a/app/code/core/Mage/Eav/Model/Entity/Attribute/Source/Abstract.php
+++ b/app/code/core/Mage/Eav/Model/Entity/Attribute/Source/Abstract.php
@@ -81,7 +81,7 @@ public function getOptionText($value)
     {
         $options = $this->getAllOptions();
         // Fixed for tax_class_id and custom_design
-        if (sizeof($options) > 0) foreach($options as $option) {
+        if (count($options)) foreach($options as $option) {
             if (isset($option['value']) && $option['value'] == $value) {
                 return isset($option['label']) ? $option['label'] : $option['value'];
             }
diff --git a/app/code/core/Mage/Media/Model/Image.php b/app/code/core/Mage/Media/Model/Image.php
index 09c1f9c542d..8f6e1ee89cb 100644
--- a/app/code/core/Mage/Media/Model/Image.php
+++ b/app/code/core/Mage/Media/Model/Image.php
@@ -157,7 +157,7 @@ public function getExtension()
      */
     public function getFilePath($useParams = false)
     {
-        if ($useParams && sizeof($this->getParams())) {
+        if ($useParams && count($this->getParams())) {
             $changes = '.' . $this->getParamsSum();
         } else {
             $changes = '';
@@ -173,7 +173,7 @@ public function getFilePath($useParams = false)
      */
     public function getFileUrl($useParams = false)
     {
-        if ($useParams && sizeof($this->getParams())) {
+        if ($useParams && count($this->getParams())) {
             $changes = '.' . $this->getParamsSum();
         } else {
             $changes = '';
diff --git a/app/code/core/Mage/Page/Block/Html/Pager.php b/app/code/core/Mage/Page/Block/Html/Pager.php
index 76f5a9e4183..a7433df754a 100644
--- a/app/code/core/Mage/Page/Block/Html/Pager.php
+++ b/app/code/core/Mage/Page/Block/Html/Pager.php
@@ -175,7 +175,7 @@ public function setShowPerPage($varName)
 
     public function getShowPerPage()
     {
-        if(sizeof($this->getAvailableLimit())<=1) {
+        if(count($this->getAvailableLimit())<=1) {
             return false;
         }
         return $this->_showPerPage;
diff --git a/app/code/core/Mage/Review/Model/Review.php b/app/code/core/Mage/Review/Model/Review.php
index 37e45a005e0..ca6865cf5d3 100644
--- a/app/code/core/Mage/Review/Model/Review.php
+++ b/app/code/core/Mage/Review/Model/Review.php
@@ -161,7 +161,7 @@ public function appendSummary($collection)
             $entityIds[] = $_item->getId();
         }
 
-        if (sizeof($entityIds) == 0) {
+        if (!count($entityIds)) {
             return $this;
         }
 
diff --git a/app/code/core/Mage/Rss/Block/Catalog/Special.php b/app/code/core/Mage/Rss/Block/Catalog/Special.php
index efc623a3e9f..301bfb32a22 100644
--- a/app/code/core/Mage/Rss/Block/Catalog/Special.php
+++ b/app/code/core/Mage/Rss/Block/Catalog/Special.php
@@ -102,7 +102,7 @@ protected function _toHtml()
             array('rssObj'=> $rssObj, 'results'=> &$results)
         );
 
-        if (sizeof($results)>0) {
+        if (count($results)) {
             foreach($results as $result){
                 // render a row for RSS feed
                 $product->setData($result);
diff --git a/app/code/core/Mage/Rule/Model/Abstract.php b/app/code/core/Mage/Rule/Model/Abstract.php
index 42d63557d67..702b1379131 100644
--- a/app/code/core/Mage/Rule/Model/Abstract.php
+++ b/app/code/core/Mage/Rule/Model/Abstract.php
@@ -312,7 +312,7 @@ protected function _convertFlatToRecursive(array $data)
                 foreach ($value as $id=>$data) {
                     $path = explode('--', $id);
                     $node =& $arr;
-                    for ($i=0, $l=sizeof($path); $i<$l; $i++) {
+                    for ($i=0, $l=count($path); $i<$l; $i++) {
                         if (!isset($node[$key][$path[$i]])) {
                             $node[$key][$path[$i]] = array();
                         }
diff --git a/app/code/core/Mage/Rule/Model/Action/Collection.php b/app/code/core/Mage/Rule/Model/Action/Collection.php
index 715a9a72fa4..04afe222008 100644
--- a/app/code/core/Mage/Rule/Model/Action/Collection.php
+++ b/app/code/core/Mage/Rule/Model/Action/Collection.php
@@ -78,7 +78,7 @@ public function addAction(Mage_Rule_Model_Action_Interface $action)
 
         $actions[] = $action;
         if (!$action->getId()) {
-            $action->setId($this->getId().'.'.sizeof($actions));
+            $action->setId($this->getId().'.'.count($actions));
         }
 
         $this->setActions($actions);
diff --git a/app/code/core/Mage/Rule/Model/Condition/Combine.php b/app/code/core/Mage/Rule/Model/Condition/Combine.php
index 8d4780ef488..0ad90519c01 100644
--- a/app/code/core/Mage/Rule/Model/Condition/Combine.php
+++ b/app/code/core/Mage/Rule/Model/Condition/Combine.php
@@ -161,7 +161,7 @@ public function addCondition($condition)
         $conditions[] = $condition;
 
         if (!$condition->getId()) {
-            $condition->setId($this->getId().'--'.sizeof($conditions));
+            $condition->setId($this->getId().'--'.count($conditions));
         }
 
         $this->setData($this->getPrefix(), $conditions);
diff --git a/app/code/core/Mage/Sales/Model/Quote.php b/app/code/core/Mage/Sales/Model/Quote.php
index e0ae811abca..863ab1bf597 100644
--- a/app/code/core/Mage/Sales/Model/Quote.php
+++ b/app/code/core/Mage/Sales/Model/Quote.php
@@ -869,7 +869,7 @@ public function getAllVisibleItems()
      */
     public function hasItems()
     {
-        return sizeof($this->getAllItems())>0;
+        return count($this->getAllItems())>0;
     }
 
     /**
diff --git a/app/code/core/Mage/Sales/Model/Quote/Address.php b/app/code/core/Mage/Sales/Model/Quote/Address.php
index c14a3ebd8e8..afe743c0557 100644
--- a/app/code/core/Mage/Sales/Model/Quote/Address.php
+++ b/app/code/core/Mage/Sales/Model/Quote/Address.php
@@ -700,7 +700,7 @@ public function getItemQty($itemId = 0)
      */
     public function hasItems()
     {
-        return sizeof($this->getAllItems())>0;
+        return count($this->getAllItems()) > 0;
     }
 
     /**
diff --git a/app/code/core/Mage/Tag/Block/Customer/View.php b/app/code/core/Mage/Tag/Block/Customer/View.php
index a1e7cf27dcd..a7ef49305d1 100644
--- a/app/code/core/Mage/Tag/Block/Customer/View.php
+++ b/app/code/core/Mage/Tag/Block/Customer/View.php
@@ -92,7 +92,7 @@ public function getMyProducts()
      */
     public function getCount()
     {
-        return sizeof($this->getMyProducts());
+        return count($this->getMyProducts());
     }
 
     /**
diff --git a/app/code/core/Mage/Tag/Model/Resource/Customer/Collection.php b/app/code/core/Mage/Tag/Model/Resource/Customer/Collection.php
index ff1f95de45a..241ec94b622 100644
--- a/app/code/core/Mage/Tag/Model/Resource/Customer/Collection.php
+++ b/app/code/core/Mage/Tag/Model/Resource/Customer/Collection.php
@@ -289,7 +289,7 @@ public function addProductName()
         $productsId = array_unique($productsId);
 
         /* small fix */
-        if (sizeof($productsId) == 0) {
+        if (!count($productsId)) {
             return $this;
         }
 
diff --git a/app/code/core/Mage/Tag/Model/Resource/Product/Collection.php b/app/code/core/Mage/Tag/Model/Resource/Product/Collection.php
index c5d6f97b4b3..4d2f59fc67a 100644
--- a/app/code/core/Mage/Tag/Model/Resource/Product/Collection.php
+++ b/app/code/core/Mage/Tag/Model/Resource/Product/Collection.php
@@ -144,7 +144,7 @@ protected function _addStoresVisibility()
         }
 
         $tagsStores = array();
-        if (sizeof($tagIds) > 0) {
+        if (count($tagIds)) {
             $select = $this->getConnection()->select()
                 ->from($this->getTable('tag/relation'), array('store_id', 'tag_id'))
                 ->where('tag_id IN(?)', $tagIds);
@@ -313,7 +313,7 @@ public function addPopularityFilter($condition)
             $prodIds[] = $item['product_id'];
         }
 
-        if (sizeof($prodIds) > 0) {
+        if (count($prodIds)) {
             $this->getSelect()->where('e.entity_id IN(?)', $prodIds);
         } else {
             $this->getSelect()->where('e.entity_id IN(0)');
diff --git a/app/code/core/Mage/Tag/Model/Resource/Tag/Collection.php b/app/code/core/Mage/Tag/Model/Resource/Tag/Collection.php
index 113507c176d..539bc524895 100644
--- a/app/code/core/Mage/Tag/Model/Resource/Tag/Collection.php
+++ b/app/code/core/Mage/Tag/Model/Resource/Tag/Collection.php
@@ -231,7 +231,7 @@ protected function _addStoresVisibility()
         $tagIds = $this->getColumnValues('tag_id');
 
         $tagsStores = array();
-        if (sizeof($tagIds) > 0) {
+        if (count($tagIds)) {
             $select = $this->getConnection()->select()
                 ->from($this->getTable('tag/summary'), array('store_id', 'tag_id'))
                 ->where('tag_id IN(?)', $tagIds);
diff --git a/app/code/core/Mage/XmlConnect/Block/Adminhtml/Connect/Dashboard/GraphDataAbstract.php b/app/code/core/Mage/XmlConnect/Block/Adminhtml/Connect/Dashboard/GraphDataAbstract.php
index 2ff752af575..fffcc4ad721 100644
--- a/app/code/core/Mage/XmlConnect/Block/Adminhtml/Connect/Dashboard/GraphDataAbstract.php
+++ b/app/code/core/Mage/XmlConnect/Block/Adminhtml/Connect/Dashboard/GraphDataAbstract.php
@@ -140,7 +140,7 @@ public function getChartData()
         $valueBuffer = array();
         $params = array();
 
-        if (sizeof($this->_axisLabels) > 0) {
+        if (count($this->_axisLabels)) {
             $indexId = 0;
             foreach ($this->_axisLabels as $idx => $labels) {
                 if ($idx == self::AXIS_X) {
diff --git a/app/code/core/Mage/XmlConnect/Block/Catalog/Category.php b/app/code/core/Mage/XmlConnect/Block/Catalog/Category.php
index d76628584dd..02255ec867d 100644
--- a/app/code/core/Mage/XmlConnect/Block/Catalog/Category.php
+++ b/app/code/core/Mage/XmlConnect/Block/Catalog/Category.php
@@ -72,7 +72,7 @@ protected function _toHtml()
         $categoryCollection = $this->getCurrentChildCategories();
 
         // subcategories are exists
-        if (sizeof($categoryCollection)) {
+        if (count($categoryCollection)) {
             $itemsXmlObj = $categoryXmlObj->addChild('items');
             $categoryImageSize = Mage::getModel('xmlconnect/images')->getImageLimitParam('content/category');
             foreach ($categoryCollection as $item) {
diff --git a/app/code/core/Mage/XmlConnect/Block/Catalog/Filters.php b/app/code/core/Mage/XmlConnect/Block/Catalog/Filters.php
index b5f3dfbc31d..ef27b1f479c 100644
--- a/app/code/core/Mage/XmlConnect/Block/Catalog/Filters.php
+++ b/app/code/core/Mage/XmlConnect/Block/Catalog/Filters.php
@@ -47,7 +47,7 @@ protected function _toHtml()
 
         $filtersXmlObj = $categoryXmlObj->addChild('filters');
         foreach ($filtersCollection->getItems() as $item) {
-            if (!sizeof($item->getValues())) {
+            if (!count($item->getValues())) {
                 continue;
             }
             $itemXmlObj = $filtersXmlObj->addChild('item');
diff --git a/app/code/core/Mage/XmlConnect/Block/Catalog/Product.php b/app/code/core/Mage/XmlConnect/Block/Catalog/Product.php
index 4f113ec1c2e..74530881436 100644
--- a/app/code/core/Mage/XmlConnect/Block/Catalog/Product.php
+++ b/app/code/core/Mage/XmlConnect/Block/Catalog/Product.php
@@ -76,7 +76,7 @@ public function productToXmlObject(Mage_Catalog_Model_Product $product, $itemNod
              */
             $hasGallery = 1;
             if ($product->getMediaGalleryImages()) {
-                $hasGallery = sizeof($product->getMediaGalleryImages()) > 0 ? 1 : 0;
+                $hasGallery = count($product->getMediaGalleryImages()) ? 1 : 0;
             }
             $item->addChild('has_gallery', $hasGallery);
             /**
diff --git a/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options.php b/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options.php
index 078ed4e037a..987b69c2ce4 100644
--- a/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options.php
+++ b/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options.php
@@ -83,7 +83,7 @@ public function getProductCustomOptionsXmlObject(Mage_Catalog_Model_Product $pro
             return $xmlModel;
         }
         $xmlModel->addAttribute('id', $product->getId());
-        if (!$product->isSaleable() || !sizeof($product->getOptions())) {
+        if (!$product->isSaleable() || !count($product->getOptions())) {
             return $xmlModel;
         }
 
diff --git a/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Bundle.php b/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Bundle.php
index 278e766f7dc..e47e12466ca 100644
--- a/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Bundle.php
+++ b/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Bundle.php
@@ -62,7 +62,7 @@ public function getProductOptionsXml(Mage_Catalog_Model_Product $product, $isObj
             $product->getTypeInstance(true)->getOptionsIds($product), $product
         );
         $bundleOptions = $optionCollection->appendSelections($selectionCollection, false, false);
-        if (!sizeof($bundleOptions)) {
+        if (!count($bundleOptions)) {
             return $isObject ? $xmlModel : $xmlModel->asNiceXml();
         }
 
diff --git a/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Configurable.php b/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Configurable.php
index 585fc842bc4..5c0c69aebac 100644
--- a/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Configurable.php
+++ b/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Configurable.php
@@ -58,7 +58,7 @@ public function getProductOptionsXml(Mage_Catalog_Model_Product $product, $isObj
          * Configurable attributes
          */
         $productAttributes = $product->getTypeInstance(true)->getConfigurableAttributes($product);
-        if (!sizeof($productAttributes)) {
+        if (!count($productAttributes)) {
             return $isObject ? $xmlModel : $xmlModel->asNiceXml();
         }
 
@@ -122,7 +122,7 @@ public function getProductOptionsXml(Mage_Catalog_Model_Product $product, $isObj
                 }
             }
 
-            if (sizeof($info['options']) > 0) {
+            if (count($info['options'])) {
                $attributes[$attributeId] = $info;
             }
         }
@@ -146,7 +146,7 @@ public function getProductOptionsXml(Mage_Catalog_Model_Product $product, $isObj
                         $valueNode->addAttribute('price', $option['price']);
                         $valueNode->addAttribute('formated_price', $option['formated_price']);
                     }
-                    if (sizeof($productAttributes) > 1) {
+                    if (count($productAttributes) > 1) {
                         $this->_prepareRecursivelyRelatedValues($valueNode, $productAttributes, $option['products'], 1);
                     }
                     if ($product->hasPreconfiguredValues()) {
diff --git a/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Grouped.php b/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Grouped.php
index 8c0a156b7d9..0800182e8bb 100644
--- a/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Grouped.php
+++ b/app/code/core/Mage/XmlConnect/Block/Catalog/Product/Options/Grouped.php
@@ -56,7 +56,7 @@ public function getProductOptionsXml(Mage_Catalog_Model_Product $product, $isObj
          * Grouped (associated) products
          */
         $associatedProducts = $product->getTypeInstance(true)->getAssociatedProducts($product);
-        if (!sizeof($associatedProducts)) {
+        if (!count($associatedProducts)) {
             return $isObject ? $xmlModel : $xmlModel->asNiceXml();
         }
 
diff --git a/app/code/core/Mage/XmlConnect/Block/Home.php b/app/code/core/Mage/XmlConnect/Block/Home.php
index e66391cf366..e1b2043d13e 100644
--- a/app/code/core/Mage/XmlConnect/Block/Home.php
+++ b/app/code/core/Mage/XmlConnect/Block/Home.php
@@ -61,7 +61,7 @@ protected function _toHtml()
             }
         }
 
-        if (sizeof($categoryCollection)) {
+        if (count($categoryCollection)) {
             $itemsXmlObj = $homeXmlObj->addChild('categories');
         }
 
diff --git a/app/code/core/Mage/XmlConnect/Model/Simplexml/Element.php b/app/code/core/Mage/XmlConnect/Model/Simplexml/Element.php
index 8f0e33b712b..0a83b40eebb 100644
--- a/app/code/core/Mage/XmlConnect/Model/Simplexml/Element.php
+++ b/app/code/core/Mage/XmlConnect/Model/Simplexml/Element.php
@@ -41,7 +41,7 @@ class Mage_XmlConnect_Model_Simplexml_Element extends Varien_Simplexml_Element
      */
     public function appendChild($source)
     {
-        if (sizeof($source->children())) {
+        if (count($source->children())) {
             $name = $source->getName();
             $child = $this->addChild($name);
         } else {