phparraysmultidimensional-arrayfilteringflatten

Search for value in 3rd level of a multidimensional array and return flattened, qualifying data sets


I am trying to search for qualifying entries in a multidimensional array and return one or more data sets as flattened, associative subarrays.

Sample input:

[
    [
        'name' => 'Dick Jansen',
        'matchedMovie' => [
            [
                'nameMovie' => 'Saw',
                'genre' => 'Horror',
                'patheMovie' => 'Texas Chainsaw 3D',
                'patheMovieGenre' => 'Horror',
                'score' => '100.00',
            ]
        ]
    ],
    [
        'name' => 'Jim Scott',
        'matchedMovie' => [
            [
                'nameMovie' => 'Shooter',
                'genre' => 'Action, Thriller',
                'patheMovie' => 'The Shining',
                'patheMovieGenre' => 'Horror, Suspense/Thriller',
                'score' => '52.38',
            ],                
            [
                'nameMovie' => 'Resident Evil Movie',
                'genre' => 'Action/Horror',
                'patheMovie' => 'Texas Chainsaw 3D',
                'patheMovieGenre' => 'Horror',
                'score' => '63.16',
            ]
        ]
    ]
]

I want to search on the patheMovie values (like 'The Shining') and get the parent array's name plus only the matchedMovie array with the matched patheMovie value.

My code:

$search = 'Texas Chainsaw 3D';

$sorted = false;
foreach ($sorted as $n => $c)
    if (in_array($search, $c)) {
        $cluster = $n;
        break;
    }

If I search for The Shining, the result should be:

array (
  0 => 
  array (
    'name' => 'Jim Scott',
    'nameMovie' => 'Shooter',
    'genre' => 'Action, Thriller',
    'patheMovie' => 'The Shining',
    'patheMovieGenre' => 'Horror, Suspense/Thriller',
    'score' => '52.38',
  ),
)

If I search for Texas Chainsaw 3D, then the result should be:

array (
  0 => 
  array (
    'name' => 'Dick Jansen',
    'nameMovie' => 'Saw',
    'genre' => 'Horror',
    'patheMovie' => 'Texas Chainsaw 3D',
    'patheMovieGenre' => 'Horror',
    'score' => '100.00',
  ),
  1 => 
  array (
    'name' => 'Jim Scott',
    'nameMovie' => 'Resident Evil Movie',
    'genre' => 'Action/Horror',
    'patheMovie' => 'Texas Chainsaw 3D',
    'patheMovieGenre' => 'Horror',
    'score' => '63.16',
  ),
)

Solution

  • This solution will depend into two conjugated loops.

    <?php
    function searchIt($arr, $searchItem){
    $result = array();
    $resultIndex = 0;
    for ($i =0; $i < count($arr); $i++){
     for ($j = 0; $j < count($arr[$i]['matchedMovie']); $j++){
      if ($arr[$i]['matchedMovie'][$j]['patheMovie'] == $searchItem){
       $result[$resultIndex]['name'] = $arr[$i]['name'];
        foreach ($arr[$i]['matchedMovie'][$j] as $key => $value){
         $result[$resultIndex][$key] = $value;
       }
        $resultIndex++;
      }
     } 
    }
    return $result;
    }
    ?>
    

    phpfiddle demo