如何在 Laravel 中循环嵌套数组以根据该数组中键值的条件获取数组

Question

I want to get only the arrays where the option is not null When i get the arrays back successfully, i also want to add it to a database, but most importantly i want to get the arrays back

array:3 [
  0 => array:5 [
    "id" => 6
    "option" => "True"
    "is_correct" => true
    "label" => "True"
    "opid" => 1
  ]
  1 => array:5 [
    "id" => 7
    "option" => "False"
    "is_correct" => false
    "label" => "False"
    "opid" => 1
  ]
  2 => array:5 [
    "id" => 8
    "option" => null
    "is_correct" => false
    "label" => "Theory"
    "opid" => 5
  ]
]

EXPECTED RESULT

array:3 [
      0 => array:5 [
        "id" => 6
        "option" => "True"
        "is_correct" => true
        "label" => "True"
        "opid" => 1
      ]
      1 => array:5 [
        "id" => 7
        "option" => "False"
        "is_correct" => false
        "label" => "False"
        "opid" => 1
      ]
    ]

WHAT I HAVE TRIED

foreach($request->option as $option) {
   if($option["option"] == null){
       dd($option)
    }
}

i only get the first value from the array.. it appears like my if condition is not working as well

i'll be in the comments thank you

Answer 1

Try except method,

Read documentation - https://laravel.com/docs/8.x/eloquent-collections#method-contains

Answer 2

Suppose if your $request->option contain array then

$filtered = collect($request->option)->whereNotNull('option')->all()->toArray();

Ref: https://laravel.com/docs/8.x/collections#method-wherenotnull

Answer 3

Use $z variable, it contains the array as per your requirement.

Demo: https://paiza.io/projects/FTTBeEEnb-EHHJbU8FOAYw

$x = [
  [
    "id" => 6,
    "option" => "True",
    "is_correct" => true,
    "label" => "True",
    "opid" => 1
  ],
  [
    "id" => 7,
    "option" => "False",
    "is_correct" => false,
    "label" => "False",
    "opid" => 1
  ],
  [
    "id" => 8,
    "option" => null,
    "is_correct" => false,
    "label" => "Theory",
    "opid" => 5
  ]
];

$z = [];
foreach ($x as $y) {
    if ($y['option'] != null) {
        array_push($z, $y);
    }
}