相关疑难解决方法(0)

我有一个返回JSON对象的URL,如下所示:

[
    {
        "idIMDB": "tt0111161",
        "ranking": 1,
        "rating": "9.2",
        "title": "The Shawshank Redemption",
        "urlPoster": "http:\/\/ia.media-imdb.com\/images\/M\/MV5BODU4MjU4NjIwNl5BMl5BanBnXkFtZTgwMDU2MjEyMDE@._V1_UX34_CR0,0,34,50_AL_.jpg",
        "year": "1994"
    }
]

网址:http://www.myapifilms.com/imdb/top

我想得到所有的urlPoster值并设置在数组的元素中,并将数组转换为JSON以便回显它.

我怎么能通过PHP来做到这一点？