Laravel 5: How to use array_get method to access an attribute with a dot inside

Question

I have an array like this:

$data = [
  "x" => [
    "y" => 5,
    "a.b" => 10
  ]
]

I can access x.y like this:

array_get($data, 'x.y');

However, how can I access x.(a.b) (sometimes written as x.a->b)

I tried the following:

array_get($data, 'x.a.b');
array_get($data, 'x.a->b');

But neither seems to work.

why you name it as a.b name it as ab and then you can access it — ali, Jul 03 '18 at 12:33

score 4 · Answer 1 · answered Jul 03 '18 at 13:27

You can't do it with array_get. If you take a look at the function (vendor/laravel/framework/src/Illuminate/Support/helpers.php:155):

function array_get($array, $key, $default = null)
{
    return Arr::get($array, $key, $default);
}

Which calls the get function of the Arr class (vendor/laravel/framework/src/Illuminate/Support/Arr.php:278):

public static function get($array, $key, $default = null)
{
    if (! static::accessible($array)) {
        return value($default);
    }

    if (is_null($key)) {
        return $array;
    }

    if (static::exists($array, $key)) {
        return $array[$key];
    }

    if (strpos($key, '.') === false) {
        return $array[$key] ?? value($default);
    }

    foreach (explode('.', $key) as $segment) {
        if (static::accessible($array) && static::exists($array, $segment)) {
            $array = $array[$segment];
        } else {
            return value($default);
        }
    }

    return $array;
}

If you take a look at the foreach loop which handles the ., it does not support the structure your array has.

Harshavardhan · Answer 2 · 2018-07-03T12:43:44.003

1

`<?php
$data = [
  "x" => [
    "y" => 5,
    "a.b" => 10
  ]
];
echo $data['x']['a.b'];
// get like this
?>`

if you are accessing from db use aliases as mentioned in below link php object attribute with dot in name

edited Jul 03 '18 at 12:43

answered Jul 03 '18 at 12:37

Harshavardhan

352
1
6

score 0 · Answer 3 · answered Jul 03 '18 at 16:27

0

It's quite simple, based on your example:

$data = [
  "x" => [
    "y" => 5,
    "a.b" => 10
  ]
];

array_get($data, "x")['a.b'] //gives you the right value

You actually don't have to use array_get for an array as this though. And also why would you use such a name for your array index.

answered Jul 03 '18 at 16:27

Oluwatobi Samuel Omisakin

6,944
3
33
48

SAML does this, sadly – haakym May 11 '20 at 10:27

score 0 · Answer 4 · answered Jan 28 '22 at 04:01

public function getNestedArr($array, $key, $default = null)
    {

        if (strpos($key, ',') === false) {
            return $array[$key] ?? value($default);
        }

        foreach (explode(',', $key) as $segment) {
            $array = $array[$segment];
        }

        return $array;
    }
$array = ['GrandParent' => ['parent' => ['childs' => 'xyz']]];
    $data = $this->getNestedArr($array, 'GrandParent,parent,childs');
    print_r($data);

Answer is "xyz"

I'm not sure this'll solve your problem, but it's very useful when you get the value from nested array

Your answer does not match what is asked for in the question, it is suggested to review your answer — bhucho, Feb 01 '22 at 15:36

Laravel 5: How to use array_get method to access an attribute with a dot inside

4 Answers4