README

Convert a multi-dimensional array into a single-dimensional array

Function signature

array_flatten(array $array, bool $preserve_keys = false): array

Parameters

array

The multi-dimensional array.

preserve_keys

Whether or not to preserve keys in the output array.

Return value

The function array_flatten returns single-dimensional array or false if no array is given as the parameter $array.

Usage

$ar = ["a", ["b", "c"], [["d",["e","f"]]]];
array_flatten($ar); // ["a","b","c","d","e","f"]

$ar = ["x" => "a", "y" => ["z" => "b", "c"]];
array_flatten($ar); // ["a", "b", "c"]
array_flatten($ar,false); // ["a", "b", "c"]
array_flatten($ar,true); // ["x" => "a", "z" => "b", 0 => "c"]

// !! duplicit key "x"
$ar = ["x" => "a", "y" => ["z" => "b", "x" => "c"]];
array_flatten($ar); // ["a", "b", "c"]
array_flatten($ar,true); // ["x" => "c", "z" => "b"]

Installation

Just use the Composer:

composer require yarri/array-flatten

License

ArrayFlatten is free software distributed under the terms of the MIT license