php 多次元配列になったstdClassをArrayにキャストする

[
        (int) 0 => object(stdClass) {
                id => 1
                name => 'taro'
        },
        (int) 1 => object(stdClass) {
                id => 2
                name => 'jiro'
        }
]

[
        (int) 0 => [
                'id' => 1,
                'name' => 'taro',
        ],
        (int) 1 => [
                'id' => 2,
                'name' => 'jiro',
       ]
] 

$ php -v
PHP 5.6.14 (cli) (built: Sep 30 2015 14:07:43)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies

$array = json_decode(json_encode($stdArray), true);