Example:
If you want to save multiple records/rows into the same table.
$multipleRowData = Array(
Array('name' => 'Bob', 'phone' => "123-123-7777"),
Array('name' => 'Ann', 'phone' => "987-123-5555"),
Array('name' => 'Tom', 'phone' => "788-123-4569")
);
$this->Mymodelname->saveAll($multipleRowData);
This would result in inserting 3 rows in the "mymodelname" table.