找一个阵列内的单个元素，而无需通过数组循环 [英] Find a single element within an array without looping through the array

问题描述

我有存储在它里面对象的数组。我想抓住的对象有测试歌曲投票-02的名称数组中为止。我知道我可以循环直通它，做一个有条件的每个对象中签的名字，但我不知道是否有一个数组/对象PHP函数，可以返回的对象，其中name ='测试歌曲民意测验-03

 阵列
（
    [0] =＆GT; stdClass的对象
        （
            [名] =＆GT;测试歌曲投票-01
            [说明] =＆GT;测试歌曲投票-01
            [created_at] =＆GT; 2014-05-02T23：07：59Z
            [计] =＆GT; stdClass的对象
                （
                    [批准] =＆GT; 63787
                    [未决] =＆GT; 341
                    [驳回] =＆GT; 78962
                    [总] =＆GT; 143090
                ）            [TPM] =＆GT; 12
            [approved_tpm] =＆GT; 3
            [PCT] =＆GT; 4
        ）    [1] =＆GT; stdClass的对象
        （
            [名] =＆GT;测试歌曲投票-02
            [说明] =＆GT;测试歌曲投票-02
            [created_at] =＆GT; 2014-05-02T23：17：20Z
            [计] =＆GT; stdClass的对象
                （
                    [批准] =＆GT; 9587
                    [未决] =＆GT; 0
                    [驳回] =＆GT; 9780
                    [总] =＆GT; 19367
                ）            [TPM] =＆GT;五
            [approved_tpm] =＆GT; 3
            [PCT] =＆GT; 1
        ）    [2] =＆GT; stdClass的对象
        （
            [名] =＆GT;测试歌曲投票-03
            [说明] =＆GT;测试歌曲投票-03
            [created_at] =＆GT; 2014-05-02T23：19：06Z
            [计] =＆GT; stdClass的对象
                （
                    [批准] =＆GT; 26442
                    [未决] =＆GT; 0
                    [驳回] =＆GT; 36242
                    [总] =＆GT; 62684
                ）            [TPM] =＆GT; 25
            [approved_tpm] =＆GT; 9
            [PCT] =＆GT; 2
        ）
）
 

更新了我的code，以显示我多么想传递一个变量：

 函数get_results（）
{
    $＃标签=测试松轮询-03;
    $这个 - ＆GT;负载＆GT;模型（'artist_model'）;
    $数据['结果'] = $这个 - ＆GT; artist_model-＆GT; get_results（）;    $ =为MyObject array_filter（$数据['结果']  - ＆GT;流功能（$ E，$＃标签）{
      返回STRCMP（$ E-GT＆;名，$＃标签）== 0;
    }）;    的print_r（$ myObject的）;
}
 

解决方案

您可以使用array_filter。

  $ myobjects = array_filter（$对象，函数（$ E）使用（$＃标签）{
  返回STRCMP（$ E-GT＆;名称，测试松轮询-03）== 0;
}）;
 

由于匿名函数，这只会工作PHP> = 5.3

如果你有旧的版本，您可以使用自己的功能。

I have an array with objects stored within it. I want to grab the object in the array that has a name of test-song-poll-02. I know I could loop thru it and do a conditional to check the name within each object but I was wondering if there is an array/object php function that can return the object where name = 'test-song-poll-03'

Array
(
    [0] => stdClass Object
        (
            [name] => test-song-poll-01
            [description] => test-song-poll-01
            [created_at] => 2014-05-02T23:07:59Z
            [count] => stdClass Object
                (
                    [approved] => 63787
                    [pending] => 341
                    [rejected] => 78962
                    [total] => 143090
                )

            [tpm] => 12
            [approved_tpm] => 3
            [pct] => 4
        )

    [1] => stdClass Object
        (
            [name] => test-song-poll-02
            [description] => test-song-poll-02
            [created_at] => 2014-05-02T23:17:20Z
            [count] => stdClass Object
                (
                    [approved] => 9587
                    [pending] => 0
                    [rejected] => 9780
                    [total] => 19367
                )

            [tpm] => 5
            [approved_tpm] => 3
            [pct] => 1
        )

    [2] => stdClass Object
        (
            [name] => test-song-poll-03
            [description] => test-song-poll-03
            [created_at] => 2014-05-02T23:19:06Z
            [count] => stdClass Object
                (
                    [approved] => 26442
                    [pending] => 0
                    [rejected] => 36242
                    [total] => 62684
                )

            [tpm] => 25
            [approved_tpm] => 9
            [pct] => 2
        )
)

UPDATED my code to show how I want to pass a variable in:

function get_results()
{
    $hashtag = "test-song-poll-03";
    $this->load->model('artist_model');
    $data['results'] = $this->artist_model->get_results();

    $myobject = array_filter($data['results']->streams, function($e, $hashtag) {
      return strcmp($e->name, $hashtag) == 0;
    });

    print_r($myobject);
}

解决方案

You can use array_filter.

$myobjects = array_filter($objects, function($e) use($hashtag) {
  return strcmp($e->name, "test-song-poll-03") == 0;
});

Because of the anonymous function, this will only work PHP >= 5.3

You can use your own function if you have older version.

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