对象数组

Question

大师们帮我看一下这个数组，我要输出数组里的book_id,chapter_id该怎么输出啊Array
(
    [0] => stdClass Object
        (
            [book] => Array
                (
                    [0] => stdClass Object
                        (
                            [create_time] => 1318905719
                            [book_id] => 85251
                            [page_index] => 1
                            [param1] => 4994
                            [param2] => 6699
                            [time_version] => 1319693381
                            [type] => 1
                            [flag] => 1
                            [chapter_id] => 150160
                        )
 
                    [1] => stdClass Object
                        (
                            [book_id] => 234234
                            [page_index] => 1
                            [param1] => 5594
                            [param2] => 6699
                            [time_version] => 1319694381
                            [filename] => 234234_31_30.sqb
                            [chapter_filename] => 181.sqc
                            [type] => 3
                            [flag] => 0
                            [chapter_id] => 2452
                        )
 
                )
 
        )
 
)

Answer 1

$arr[0]->book[0]->book_id;
$arr[0]->book[1]->chapter_id;

Answer 2

你的开始应该是一个json数据，把json数据转换为数组：json_decode($json,true);