// Normalize

classes/cache/Cache.php

@@ -249,7 +249,7 @@ abstract class CacheCore
 
 		// Get all table from the query and save them in cache
 		if (preg_match_all('/('._DB_PREFIX_.'[a-z_-]*)`?.*/i', $query, $res))
-			foreach($res[1] as $table)
+			foreach ($res[1] as $table)
 				if (!isset($this->sql_tables_cached[$table][$key]))
 					$this->sql_tables_cached[$table][$key] = true;
 		$this->set(self::SQL_TABLES_NAME, $this->sql_tables_cached);

classes/cache/CacheFs.php

@@ -132,7 +132,7 @@ class CacheFsCore extends Cache
 		if (!$directory)
 			$directory = _PS_CACHEFS_DIRECTORY_;
 		$chars = '0123456789abcdef';
-		for ($i = 0; $i < strlen($chars); $i++)
+		for ($i = 0, $length = strlen($chars); $i < $length; $i++)
 		{
 			$new_dir = $directory.$chars[$i].'/';
 			if (mkdir($new_dir))

classes/cache/CacheMemcache.php

@@ -53,7 +53,7 @@ class CacheMemcacheCore extends Cache
                     if ($this->memcache->getExtendedStats('cachedump', (int)$slab_id))
                         foreach ($dump as $entries)
                             foreach ($entries as $entry)
-                                $this->keys[$entry] = 0;;
+                                $this->keys[$entry] = 0;
 	}
 
 	public function __destruct()
@@ -70,7 +70,7 @@ class CacheMemcacheCore extends Cache
 		$servers = CacheMemcache::getMemcachedServers();
 		if (!$servers)
 			return false;
-		foreach ($servers AS $server)
+		foreach ($servers as $server)
 			$this->memcache->addServer($server['ip'], $server['port'], $server['weight']);
 
 		$this->is_connected = true;