didacelgueta/flatten-multidimensional-array

Convert multidimensional array to unidimensional array concatenating the keys

Flatten multidimensional array

Convert multidimensional array to unidimensional array concatenating the keys

Install

Via composer:

composer require didacelgueta/flatten-multidimensional-array

Usage

use Didacelgueta\FlattenMultidimensionalArray;

$two_dimansional_array = array(
    'a' => 1,
    'b' => array('c' => 2, 'd' => 3)
);

// Reduce the dimensionality by calling 'array_flatten' class method
$result = FlattenMultidimensionalArray::array_flatten($two_dimansional_array)

var_dump($result);

The result will return a new array with just one dimension:

[
    'a' => 1,
    'b.c' => 2,
    'b.d' => 3
]

Set specific key separator

By default the key separator is '.' but you can specify the key separator you prefere by passing a string as the second parameter for array_flatten method

$arg = array(
    'a' => 1,
    'b' => [
        'c' => 2,
        'd' => 3
    ]
);

$result = FlattenMultidimensionalArray::array_flatten($arg, '_');

var_dump($result);

The result will return the one dimension array with the keys nested by '_'

[
    'a' => 1,
    'b_c' => 2,
    'b_d' => 3
]

License

Flatten Multidimensional Array is an open-sourced package licensed under the MIT license.