Set key and value in multi-dimensional array object in PHP

Question

All i need is to add [checked] => 1 in some of the arrays on a condition: i have a variable and wants to compare that with the value of 'name' . Ex: If my variable matches with Display or Forwarding, then insertion of a new key and value has to be done.

can anybody tell me how to do that ? I want to directly go to specific index like at 0 or 1 or any index of features array and want to insert new key and value like [checked] => 1

   Array
        (
            [Call xyz] => Array
                (
                    [features] => Array
                        (
                            [0] => Array
                                (
                                    [name] => Display
                                    [display] => webxxx
                                    [category] => x
                                    [uniq_id] => x
                                )

                            [1] => Array
                                (
                                    [name] => Forwarding
                                    [display] => webxxx
                                    [category] => x
                                    [uniq_id] => x
                                )
                        )
               )
           [Hidden] => Array
               (
                   [features] => Array
                      (
                         [0] => Array
                            (
                                [name] => XYZ
                                [display] => webxxx
                                [category] => x
                                [uniq_id] => x
                        )

                        [1] => Array
                          (
                               [name] => ABC
                               [display] => webxxx
                               [category] => x
                               [uniq_id] => x
                          )
                   )
             )

In the future, please include your best coding attempt in your question. This helps us to know that you have tried to self-solve, that you'd done some research, and we may only need to make minor adjustments to your work (as opposed to writing a full snippet for you). — mickmackusa
– mickmackusa ♦, Commented Aug 31, 2018 at 6:17

mickmackusa · Accepted Answer · 2018-08-30 14:11:31Z

You will need to access down to the lowest subarray where the name key resides. The first level keys are Call xyz and Hidden. The second level subarrays are both keyed with features. The third level has indexed keys. name is an associative key on the fourth level.

Once you work your way down to the fourth level, you can concisely write in_array() in your condition to check if the lowest row of data qualifies to receive the new checkbox => 1 element. (Alternatively, you could omit the in_array() call and use: $set3["name"] == "Display" || $set3["name"] == "Forwarding" but this is more verbose and uglier to scale up.)

Code: (Demo)

$array = [
    "Call xyz" => [
        "features" => [
            ["name" => "Display", "display" => "webxxx", "category" => "x", "uniq_id" => "x"],
            ["name" => "Forwarding", "display" => "webxxx", "category" => "x", "uniq_id" => "x"]
        ]
    ],
    "Hidden" => [
        "features" => [
            ["name" => "XYZ", "display" => "webxxx", "category" => "x", "uniq_id" => "x"],
            ["name" => "ABC", "display" => "webxxx", "category" => "x", "uniq_id" => "x"]
        ]
    ]
];

$whitelist = ["Display", "Forwarding"];

foreach ($array as $key1 => $set1) {
    foreach ($set1 as $key2 => $set2) {
        foreach ($set2 as $key3 => $set3) {
            if (in_array($set3["name"], $whitelist)) {
                $array[$key1][$key2][$key3]["checkbox"] = 1;    
            }
        }
    }
}

var_export($array);

Output:

array (
  'Call xyz' => 
  array (
    'features' => 
    array (
      0 => 
      array (
        'name' => 'Display',
        'display' => 'webxxx',
        'category' => 'x',
        'uniq_id' => 'x',
        'checkbox' => 1,
      ),
      1 => 
      array (
        'name' => 'Forwarding',
        'display' => 'webxxx',
        'category' => 'x',
        'uniq_id' => 'x',
        'checkbox' => 1,
      ),
    ),
  ),
  'Hidden' => 
  array (
    'features' => 
    array (
      0 => 
      array (
        'name' => 'XYZ',
        'display' => 'webxxx',
        'category' => 'x',
        'uniq_id' => 'x',
      ),
      1 => 
      array (
        'name' => 'ABC',
        'display' => 'webxxx',
        'category' => 'x',
        'uniq_id' => 'x',
      ),
    ),
  ),
)

The fourth bird · Accepted Answer · 2018-08-30 11:31:28Z

1

Perhaps you could use a foreach, check if the key/index exists on the array and check the values for "name". If that matches add [checked] => 1:

$index = 1;
foreach ($arrays as &$array) {
    if (array_key_exists($index, $array["features"]) &&
        ($array["features"][$index]["name"] === "Display" || $array["features"][$index]["name"] === "Forwarding")
    ) {
        $array["features"][$index]["checked"] = 1;
    }
}

Demo

answered Aug 30, 2018 at 11:31

The fourth bird

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Comments

delboy1978uk · Accepted Answer · 2018-08-30 10:53:22Z

-2

This is pretty simple. Given that you know which array key $index you need to change :

$array['Call xyz']['features'][$index]['checked'] = 1;

answered Aug 30, 2018 at 10:53

delboy1978uk

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3 Comments

Jitendra Ahuja Over a year ago

wait but its not just call xyz, we have multiple arrays like this

delboy1978uk Over a year ago

Again, if you have that key, just replace it with a variable like i did $index

delboy1978uk Over a year ago

something like $array[$call]['features'][$index]['checked'] = 1;

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