php从数组中删除重复项

【问题标题】：php remove duplicates from arrayphp从数组中删除重复项
【发布时间】：2011-02-21 02:55:26
【问题描述】：

我想知道是否有人可以帮助我，我正在尝试找到一个脚本来检查我的整个数组并在需要时删除任何重复项，然后以相同的格式输出数组。

这是我的数组的一个例子（你会看到有一些重复）：

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] => 
                )

        )

)

【问题讨论】：

你有很多嵌套数组。你是指哪些重复项？例如。第一个子数组包含一个 ID 为 57 的对象。这是否意味着，这个对象应该在第二个（以及所有更远的）子数组中删除？
可能重复：stackoverflow.com/questions/307674/…
是的，这就是我所追求的......我知道它是多维的，但如果任何子数组中的任何内容都存在重复，则应将其删除:)
好的，只是想知道我是否做对了:)

标签： php arrays duplicates

【解决方案1】：

您可以通过以下方式从数组中删除重复项：

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

【讨论】：

【解决方案2】：

使用array_unique 函数。

这是一个多维array_unique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;
}

未测试，来自功能手册中的 cmets。

【讨论】：

+1，但这似乎非常熟悉 (stackoverflow.com/questions/1247950/…)... xP
您需要将对象转换为数组并使用array_merge。
尝试了其他线程的代码，但不适用于我的数组，它仍然出现重复..
这个函数super unique 只适用于我试过的二维数组，但它只适用于二维

【解决方案3】：

我的 PHP 生锈了，但是这样的东西应该可以工作：

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;
      }
    }
  }
}

【讨论】：

【解决方案4】：

停止使用您自己的导致重复的数组拆分函数并阅读array_chunk上的php手册页

【讨论】：

【解决方案5】：

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
)

【讨论】：

3 年后，这对我的编码器作家的障碍有所帮助。

猜你喜欢

1970-01-01
1970-01-01
1970-01-01
1970-01-01
1970-01-01
2018-07-22
2011-06-29
2016-07-30

相关资源

下载 2022-12-20
下载 2023-01-10
下载 2023-03-28

最近更新更多

热门标签

Java Python linux javascript Mysql C# Docker 算法前端 SpringBoot Redis Vue spring 设计模式 .net core .net kubernetes c++ 数据库数据结构大数据 js 机器学习微服务 Android Go 程序员面试 JVM ASP.net core 云原生人工智能后端 PHP git CSS golang k8s Nginx Django mybatis 深度学习多线程 React 架构 devops 爬虫云计算 Spring Boot LeetCode