Фильтр-массив с подмассивом с использованием array_filter возвращает пустой массив

Question

Я пытаюсь отфильтровать массив по user_id с помощью array_filter. Массив имеет вспомогательный массив, как вы можете видеть ниже.

Я ожидаю вернуть только массивы с данными user_id. Результатом моего кода является пустой массив.

Мой код:

foreach ($this->analyticsData['data'] as $data) { 

    $filteredArray = array_filter($data['author'], function ($data) { 
     return $data == '17'; 
    }); 
} 

Массив:

[data] => Array 
     (
      [0] => Array 
       (
        [pagePath] => /en/thing/guiness-world-record-in-limassol0 
        [pageTitle] => Guiness World Record in Limassol - Chain of 280 divers in Limassol broke the Guinness record... 
        [wholeProfit] => 8.3359394004686 
        [uniquePageView] => Array 
         (
          [qty] => 440 
          [percentage] => 8.6477987421384 
          [profit] => 4.3238993710692 
         ) 

        [entrance] => Array 
         (
          [qty] => 410 
          [percentage] => 14.30565247732 
          [profit] => 3.5764131193301 
         ) 

        [avgTime] => Array 
         (
          [qty] => 00:04:23 
          [sec] => 263.58 
          [percentage] => 0.46295979163121 
          [profit] => 0.046295979163121 
         ) 

        [bounceRate] => Array 
         (
          [in] => 87.07317073170732 
          [out] => 12.93 
          [percentage] => 0.03861857215819 
          [profit] => 0.003861857215819 
         ) 

        [pageView] => Array 
         (
          [qty] => 521 
          [percentage] => 7.7093814738088 
          [profit] => 0.38546907369044 
         ) 

        [author] => Array 
         (
          [user_id] => 17 
          [name] => Giannis Papanastasiou 
         ) 

       ) 

      [1] => Array 
       (
        [pagePath] => /el/thing/feast-of-the-harvest 
        [pageTitle] => Γιορτή του Τρύγου - Απόσταξη ζιβανίας και επίδειξη παλουζέ 
        [wholeProfit] => 4.1913500922592 
        [uniquePageView] => Array 
         (
          [qty] => 218 
          [percentage] => 4.2845911949686 
          [profit] => 2.1422955974843 
         ) 

        [entrance] => Array 
         (
          [qty] => 209 
          [percentage] => 7.2923935799023 
          [profit] => 1.8230983949756 
         ) 

        [avgTime] => Array 
         (
          [qty] => 00:03:05 
          [sec] => 185.46 
          [percentage] => 0.32574748826134 
          [profit] => 0.032574748826134 
         ) 

        [bounceRate] => Array 
         (
          [in] => 84.21052631578947 
          [out] => 15.79 
          [percentage] => 0.047160653857526 
          [profit] => 0.0047160653857526 
         ) 

        [pageView] => Array 
         (
          [qty] => 255 
          [percentage] => 3.773305711749 
          [profit] => 0.18866528558745 
         ) 

        [author] => Array 
         (
          [user_id] => 12 
          [name] => Christina Nicolaou 
         ) 

       ) 

      [2] => Array 
       (
        [pagePath] => /el/thing/halloween-at-cyherbia 
        [pageTitle] => Halloween στον βοτανικό πάρκο Cyherbia - Παιχνίδια εμπνευσμένα απο παραμύθια 
        [wholeProfit] => 3.307363812081 
        [uniquePageView] => Array 
         (
          [qty] => 174 
          [percentage] => 3.4198113207547 
          [profit] => 1.7099056603774 
         ) 

        [entrance] => Array 
         (
          [qty] => 161 
          [percentage] => 5.6175854849965 
          [profit] => 1.4043963712491 
         ) 

        [avgTime] => Array 
         (
          [qty] => 00:03:21 
          [sec] => 201.89 
          [percentage] => 0.3546056314304 
          [profit] => 0.03546056314304 
         ) 

        [bounceRate] => Array 
         (
          [in] => 87.5776397515528 
          [out] => 12.42 
          [percentage] => 0.037095333813203 
          [profit] => 0.0037095333813203 
         ) 

        [pageView] => Array 
         (
          [qty] => 208 
          [percentage] => 3.0778336786031 
          [profit] => 0.15389168393016 
         ) 

        [author] => Array 
         (
          [user_id] => 12 
          [name] => Christina Nicolaou 
         ) 

       ) 

      [3] => Array 
       (
        [pagePath] => /en/thing/zivania 
        [pageTitle] => Zivania - Distilled Grape Alcohol 
        [wholeProfit] => 2.6858766693942 
        [uniquePageView] => Array 
         (
          [qty] => 153 
          [percentage] => 3.0070754716981 
          [profit] => 1.5035377358491 
         ) 

        [entrance] => Array 
         (
          [qty] => 112 
          [percentage] => 3.9078855547802 
          [profit] => 0.97697138869505 
         ) 

        [avgTime] => Array 
         (
          [qty] => 00:03:54 
          [sec] => 234.40 
          [percentage] => 0.41170716730539 
          [profit] => 0.041170716730539 
         ) 

        [bounceRate] => Array 
         (
          [in] => 80.35714285714286 
          [out] => 19.64 
          [percentage] => 0.058659609991249 
          [profit] => 0.0058659609991249 
         ) 

        [pageView] => Array 
         (
          [qty] => 214 
          [percentage] => 3.166617342409 
          [profit] => 0.15833086712045 
         ) 

        [author] => Array 
         (
          [user_id] => 19 
          [name] => Bill Warry 
         ) 

       ) 

Answer 1

array_filter сам перебирает массив. Вам не нужен цикл foreach. Просто передайте фактический массив и затем соответствующим образом фильтруйте:

$filteredArray = array_filter($this->analyticsData['data'], function ($data) { 
    return $data['author']['user_id'] == '17'; 
});