使用set :: class实用程序提取数组

Question

有没有办法使用set :: class utiliy为指定的id提取数组？我无法弄清楚XPath。

即。我想提取id = 1

的数组

[Document] => Array
        (
            [0] => Array
                (
                    [id] => 1
                    [filename] => 1.txt
                )

            [1] => Array
                (
                    [id] => 2
                    [filename] => 2.txt
                )

            [2] => Array
                (
                    [id] => 3
                    [filename] => 3.txt
                )


        )

Answer 1

尝试：

Set :: extract（'/ [id = 1]'，$ data ['Document']）;

或

Set :: extract（'/ [id = 1] / ..'，$ data ['Document']）;