diff --git a/src/Database/Manager.php b/src/Database/Manager.php
index 1fbc101..1629a92 100644
--- a/src/Database/Manager.php
+++ b/src/Database/Manager.php
@@ -16,27 +16,27 @@ class Manager
         $this->db = $db;
     }
 
-    public function ExecuteAction($action/*: array*/, $db_file = "")
+    public function executeAction($action/*: array*/, $db_file = "")
     {
         switch($action["type"]) {
             case "dropTable":
-                $this->DropTableQuery($action["table_name"], true);
+                $this->dropTableQuery($action["table_name"], true);
                 break;
             case "createTable":
                 $constraints = $action["constraints"] ?? null;
-                $this->CreateTableQuery($action["table_name"], $action["fields"], $constraints);
+                $this->createTableQuery($action["table_name"], $action["fields"], $constraints);
                 break;
             case "addColumn":
-                $this->AddColumn($action["table_name"], $action["column_name"], $action["field"]);
+                $this->addColumn($action["table_name"], $action["column_name"], $action["field"]);
                 break;
             case "insert":
                 $this->db->insertQuery($action["table_name"], $action["values"]);
                 break;
             case "alterReference":
-                $this->AlterReference($action["table"], $action["column"], $action["refTable"], $action["refColumn"]);
+                $this->alterReference($action["table"], $action["column"], $action["refTable"], $action["refColumn"]);
                 break;
             case "renameColumn":
-                $this->RenameColumn($action["table"], $action["old_name"], $action["new_name"]);
+                $this->renameColumn($action["table"], $action["old_name"], $action["new_name"]);
                 break;
             case "createView":
                 $this->recreateView($action["view"], $action["select"]);
@@ -66,7 +66,7 @@ class Manager
         $this->db->query("CREATE VIEW ".$viewName." AS ".$selectStatement);
     }
 
-    public function DropTableQuery($table, $cascade=false)
+    public function dropTableQuery($table, $cascade=false)
     {
         $statement = "DROP TABLE IF EXISTS ".$table;
         if ($this->db->isPostgres()&&$cascade) {
@@ -75,13 +75,13 @@ class Manager
         $this->db->query($statement);
     }
 
-    public function AlterReference($table, $column, $refTable, $refColumn)
+    public function alterReference($table, $column, $refTable, $refColumn)
     {
         $this->db->query("ALTER TABLE ".$table." ADD CONSTRAINT ".$table."_".$column."fk"." FOREIGN KEY (".$column.") REFERENCES ".$refTable." (".$refColumn.")");
     }
 
     //Извлечение информации о полях таблицы
-    public function TableInfo($table)
+    public function tableInfo($table)
     {
         $pg = $this->db->isPostgres();
         if ($pg) {
@@ -103,26 +103,26 @@ class Manager
         }
     }
 
-    public function RenameColumn($table, $old_name, $new_name)
+    public function renameColumn($table, $old_name, $new_name)
     {
         $pg = $this->db->isPostgres();
         if ($pg) {
             $this->db->query("ALTER TABLE ".$table." RENAME COLUMN ".$old_name." TO ".$new_name);
         } else {
             $tmp_table = "tmp_" . $table;
-            $this->DropTableQuery($tmp_table);
-            $table_info = $this->TableInfo($table);
+            $this->dropTableQuery($tmp_table);
+            $table_info = $this->tableInfo($table);
 
             if (isset($table_info[$new_name])) {
                 return;
             }
 
-            $data/*: array*/ = $this->DumpTable($table);
+            $data/*: array*/ = $this->dumpTable($table);
 
             $this->db->query("ALTER TABLE ".$table." RENAME TO ".$tmp_table.";");
             $table_info[$new_name] = $table_info[$old_name];
             unset($table_info[$old_name]);
-            $this->CreateTableQuery($table, $table_info, null);
+            $this->createTableQuery($table, $table_info, null);
 
             foreach ($data as $row) {
                 $values = $row['values'];
@@ -130,17 +130,17 @@ class Manager
                 unset($values[$old_name]);
                 $this->db->insertQuery($table, $values);
             }
-            $this->DropTableQuery($tmp_table);
+            $this->dropTableQuery($tmp_table);
         }
     }
 
     //Обновление ключа serial после ручной вставки
-    public function UpdateSerial($table, $column)
+    public function updateSerial($table, $column)
     {
         $this->db->query("SELECT setval(pg_get_serial_sequence('".$table."', '".$column."'), coalesce(max(".$column."),0) + 1, false) FROM ".$table);
     }
 
-    public function Column_Definition($name, $data, $pg)
+    public function columnDefinition($name, $data, $pg)
     {
         $constraint = isset($data['constraint']) ? " ".$data['constraint'] : "";
         $references = "";
@@ -161,11 +161,11 @@ class Manager
         return $name." ".$type.$references.$constraint;
     }
 
-    public function AddColumn($table_name, $column_name, $field)
+    public function addColumn($table_name, $column_name, $field)
     {
         $pg = $this->db->isPostgres();
         $q = "ALTER TABLE ".$table_name." ADD COLUMN ".
-          $this->Column_Definition($column_name, $field, $pg);
+          $this->columnDefinition($column_name, $field, $pg);
         $this->db->query($q);
     }
 
@@ -178,7 +178,7 @@ class Manager
     }
 
     //CreateTableQuery('users',['id'=>['type'=>'integer','constraint'=>'PRIMARY KEY']])
-    public function CreateTableQuery($table, $fields, $constraints)
+    public function createTableQuery($table, $fields, $constraints)
     {
         $pg = $this->db->isPostgres();
         if ($constraints) {
@@ -191,26 +191,25 @@ class Manager
         $statement = "CREATE TABLE $table (" . implode(
             ",",
             array_map(function ($name, $data) use ($pg) {
-                return $this->Column_Definition($name, $data, $pg);
+                return $this->columnDefinition($name, $data, $pg);
             }, array_keys($fields), array_values($fields))
         ) . " " . $constraints . ")";
         $this->db->query($statement);
     }
 
-    public function DumpTable($table_name)
+    public function dumpTable($table_name)
     {
         $pg = $this->db->isPostgres();
 
-        $result/*: array*/ = [];
-        $data/*: array*/ = $this->db->fetchAllArray("SELECT * FROM ".$table_name.";");
+        $result = [];
+        $data = $this->db->fetchAllArray("SELECT * FROM ".$table_name.";");
 
         if (!$pg) {
-            $table_fields = $this->TableInfo($table_name);
+            $table_fields = $this->tableInfo($table_name);
             foreach ($table_fields as $name => $value) {
                 $type = strtolower($value['type']);
                 if ($type == "boolean") {
-                    foreach ($data as &$row) {
-                        $row/*: array*/ = $row;
+                    foreach ($data as &$row) {                        
                         if (isset($row[$name])) {
                             $row[$name] = boolval($row[$name]);
                         }
@@ -228,7 +227,7 @@ class Manager
         return $result;
     }
 
-    public function GetAllTableNames()
+    public function getAllTableNames()
     {
         $result = [];
         if ($this->db->isPostgres()) {
@@ -243,12 +242,12 @@ class Manager
         return $result;
     }
 
-    public function DumpInserts()
+    public function dumpInserts()
     {
-        $table_names = $this->GetAllTableNames();
+        $table_names = $this->getAllTableNames();
         $result = [];
         foreach ($table_names as $table_name) {
-            $result = array_merge($result, $this->DumpTable($table_name));
+            $result = array_merge($result, $this->dumpTable($table_name));
         }
         return $result;
     }
diff --git a/src/Excel/Document.php b/src/Excel/Document.php
index e149da2..a8adddd 100644
--- a/src/Excel/Document.php
+++ b/src/Excel/Document.php
@@ -80,7 +80,7 @@ class Document {
     function save($filename)
     {
         $doc = new XMLWriter();
-        if (!$doc->openURI($filename)) {
+        if (!$doc->openUri($filename)) {
             throw new Exception("unknown file " .  $filename);
         }
         $doc->setIndent(false);