PHP从数组中删除重复项

phparraysduplicates

6

6

我想知道是否有人能帮助我，我正在尝试找到一个脚本，它可以检查整个数组并根据需要删除任何重复项，然后以相同的格式输出数组。

这是我的数组示例（您将看到一些重复项）：

Array
(
    [0] => Array
        (
            [0] => stdClass Object
                (
                    [bid] => 34
                    [name] => Adrianos Pizza & Pasta
                    [imageurl] => sp_adrian.gif
                    [clickurl] => #
                )

            [1] => stdClass Object
                (
                    [bid] => 42
                    [name] => Ray White Mordialloc
                    [imageurl] => sp_raywhite.gif
                    [clickurl] => http://www.raywhite.com/
                )

            [2] => stdClass Object
                (
                    [bid] => 48
                    [name] => Beachside Osteo
                    [imageurl] => sp_beachside.gif
                    [clickurl] => http://www.beachsideosteo.com.au/
                )

            [3] => stdClass Object
                (
                    [bid] => 57
                    [name] => Southern Suburbs Physiotherapy Centre
                    [imageurl] => sp_sspc.jpg
                    [clickurl] => http://www.sspc.com.au
                )

            [4] => stdClass Object
                (
                    [bid] => 52
                    [name] => Mordialloc Travel and Cruise
                    [imageurl] => sp_morditravel.jpg
                    [clickurl] => http://www.yellowpages.com.au/vic/mordialloc/mordialloc-travel-cruise-13492525-listing.html
                )

            [5] => stdClass Object
                (
                    [bid] => 37
                    [name] => Mordialloc Cellar Door
                    [imageurl] => sp_cellardoor.gif
                    [clickurl] => 
                )

            [6] => stdClass Object
                (
                    [bid] => 53
                    [name] => Carmotive
                    [imageurl] => sp_carmotive.jpg
                    [clickurl] => http://www.carmotive.com.au/
                )

        )

    [1] => Array
        (
            [0] => stdClass Object
                (
                    [bid] => 55
                    [name] => 360South
                    [imageurl] => sp_360.jpg
                    [clickurl] => 
                )

            [1] => stdClass Object
                (
                    [bid] => 40
                    [name] => Ripponlea Mitsubishi
                    [imageurl] => sp_mitsubishi.gif
                    [clickurl] => 
                )

            [2] => stdClass Object
                (
                    [bid] => 57
                    [name] => Southern Suburbs Physiotherapy Centre
                    [imageurl] => sp_sspc.jpg
                    [clickurl] => http://www.sspc.com.au
                )

            [3] => stdClass Object
                (
                    [bid] => 52
                    [name] => Mordialloc Travel and Cruise
                    [imageurl] => sp_morditravel.jpg
                    [clickurl] => http://www.yellowpages.com.au/vic/mordialloc/mordialloc-travel-cruise-13492525-listing.html
                )

            [4] => stdClass Object
                (
                    [bid] => 37
                    [name] => Mordialloc Cellar Door
                    [imageurl] => sp_cellardoor.gif
                    [clickurl] => 
                )

            [5] => stdClass Object
                (
                    [bid] => 53
                    [name] => Carmotive
                    [imageurl] => sp_carmotive.jpg
                    [clickurl] => http://www.carmotive.com.au/
                )

        )

    [2] => Array
        (
            [0] => stdClass Object
                (
                    [bid] => 44
                    [name] => Mordialloc Personal Trainers
                    [imageurl] => sp_mordipt.gif
                    [clickurl] => #
                )

            [1] => stdClass Object
                (
                    [bid] => 36
                    [name] => Big River
                    [imageurl] => sp_bigriver.gif
                    [clickurl] => 
                )

            [2] => stdClass Object
                (
                    [bid] => 52
                    [name] => Mordialloc Travel and Cruise
                    [imageurl] => sp_morditravel.jpg
                    [clickurl] => http://www.yellowpages.com.au/vic/mordialloc/mordialloc-travel-cruise-13492525-listing.html
                )

            [3] => stdClass Object
                (
                    [bid] => 37
                    [name] => Mordialloc Cellar Door
                    [imageurl] => sp_cellardoor.gif
                    [clickurl] => 
                )

            [4] => stdClass Object
                (
                    [bid] => 53
                    [name] => Carmotive
                    [imageurl] => sp_carmotive.jpg
                    [clickurl] => http://www.carmotive.com.au/
                )

        )

    [3] => Array
        (
            [0] => stdClass Object
                (
                    [bid] => 41
                    [name] => Print House Graphics
                    [imageurl] => sp_printhouse.gif
                    [clickurl] => 
                )

            [1] => stdClass Object
                (
                    [bid] => 49
                    [name] => Kim Reed Conveyancing
                    [imageurl] => sp_kimreed.jpg
                    [clickurl] => 
                )

            [2] => stdClass Object
                (
                    [bid] => 37
                    [name] => Mordialloc Cellar Door
                    [imageurl] => sp_cellardoor.gif
                    [clickurl] => 
                )

            [3] => stdClass Object
                (
                    [bid] => 53
                    [name] => Carmotive
                    [imageurl] => sp_carmotive.jpg
                    [clickurl] => http://www.carmotive.com.au/
                )

        )

    [4] => Array
        (
            [0] => stdClass Object
                (
                    [bid] => 38
                    [name] => Lowe Financial Group
                    [imageurl] => sp_lowe.gif
                    [clickurl] => http://lowefinancial.com/
                )

            [1] => stdClass Object
                (
                    [bid] => 58
                    [name] => Dicount Lollie Shop
                    [imageurl] => new dls logo.jpg
                    [clickurl] => 
                )

            [2] => stdClass Object
                (
                    [bid] => 53
                    [name] => Carmotive
                    [imageurl] => sp_carmotive.jpg
                    [clickurl] => http://www.carmotive.com.au/
                )

        )

    [5] => Array
        (
            [0] => stdClass Object
                (
                    [bid] => 45
                    [name] => Mordialloc Sporting Club
                    [imageurl] => msc logo.jpg
                    [clickurl] => 
                )

            [1] => stdClass Object
                (
                    [bid] => 33
                    [name] => Two Brothers
                    [imageurl] => sp_2brothers.gif
                    [clickurl] => http://www.2brothers.com.au/
                )

        )

    [6] => Array
        (
            [0] => stdClass Object
                (
                    [bid] => 46
                    [name] => Patterson Securities
                    [imageurl] => cmyk patersons_withtag.jpg
                    [clickurl] => 
                )

            [1] => stdClass Object
                (
                    [bid] => 56
                    [name] => Logical Services
                    [imageurl] => sp_logical.jpg
                    [clickurl] => 
                )

        )

    [7] => Array
        (
            [0] => stdClass Object
                (
                    [bid] => 59
                    [name] => Pure Sport
                    [imageurl] => sp_psport.jpg
                    [clickurl] => http://www.puresport.com.au/
                )

            [1] => stdClass Object
                (
                    [bid] => 51
                    [name] => Richmond and Bennison
                    [imageurl] => sp_richmond.jpg
                    [clickurl] => http://www.richbenn.com.au/
                )

        )

    [8] => Array
        (
            [0] => stdClass Object
                (
                    [bid] => 39
                    [name] => Main Street Mordialloc
                    [imageurl] => main street cafe.jpg
                    [clickurl] => 
                )

            [1] => stdClass Object
                (
                    [bid] => 50
                    [name] => Letec
                    [imageurl] => sp_letec.jpg
                    [clickurl] => www.letec.biz
                )

        )

    [9] => Array
        (
            [0] => stdClass Object
                (
                    [bid] => 54
                    [name] => PPM Builders
                    [imageurl] => sp_ppm.jpg
                    [clickurl] => http://www.hotfrog.com.au/Companies/P-P-M-Builders
                )

            [1] => stdClass Object
                (
                    [bid] => 43
                    [name] => Systema
                    [imageurl] => sp_systema.gif
                    [clickurl] => 
                )

        )

)

- SoulieBaby

1

你有很多嵌套的数组。你指的是哪些重复项？例如，第一个子数组包含一个ID为57的对象。这是否意味着该对象应在第二个（以及所有后续的）子数组中被删除？ - Felix Kling

1

可能是重复的：https://dev59.com/OXVC5IYBdhLWcg3wZwNT - Felix Kling

是的，那就是我想要的... 我知道它是多维的，但如果任何子数组中有任何重复的内容，它都应该被删除 :) - SoulieBaby

好的，我只想知道我理解得对不对 :) - Felix Kling

5个回答

5

5

您可以通过以下方式从数组中删除重复项：

$array = array_values(array_unique($array));

- Gazler

4

4

试试这个，它适用于大型数组：

$original = array('one', 'two', 'three', 'four', 'five', 'two', 'four');
$filtered = array();
foreach ($original as $key => $value){
    if(in_array($value, $filtered)){
        continue;
    }
    array_push($filtered, $value);
}

print_r($filtered);

输出：

Array
(
    [0] => one
    [1] => two
    [2] => three
    [3] => four
    [4] => five
)

- Joe L.

三年后，这篇文章帮助我克服了我的程序员写作障碍。 - Don Boots

3

3

使用array_unique函数。

以下是多维数组去重函数的实现。

function super_unique($array)
{
  $result = array_map("unserialize", array_unique(array_map("serialize", $array)));

  foreach ($result as $key => $value)
  {
    if ( is_array($value) )
    {
      $result[$key] = super_unique($value);
    }
  }

  return $result;
}

未经测试，来自函数手册中的评论。

- Boris Guéry

+1，不过这似乎非常熟悉（https://dev59.com/90jSa4cB1Zd3GeqPIcyJ#1248189）... xP - Alix Axel

1

您需要将对象转换为数组并使用 array_merge。 - Alix Axel

尝试了另一个线程中的代码，但它不能处理我的数组，仍然会出现重复项。 - SoulieBaby

这个函数 super unique 只适用于二维数组，我尝试过它可以工作，但只能在2D上使用。 - Qchmqs

0

0

我的 PHP 已经生疏了，但是类似这样的代码应该可以工作：

function makeUniqueBidArray(&$array)
{
  $tempArray = array();
  foreach($array as $bidArray) {
    foreach($bidArray as $bid) {
      if (isset($tempArray[$bid->bid]) {
        unset($bid);
      } else {
        $tempArray[$bid->bid] = $bid->name;
      }
    }
  }
}

- Marcus Adams

0

0

停止使用会导致重复的自己编写的数组拆分函数，并阅读 PHP 手册页面 array_chunk。

- Kris

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