Contents

<?php

function flatten($array = [])
{
    $return = array();
    array_walk_recursive($array, function ($x) use (&$return) {
        return !is_null($x) ? $return[] = $x : [];
    });
    return $return;
}

Version data entries

148 entries across 148 versions & 1 rubygems

Version	Path
trackler-2.2.1.159	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.158	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.157	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.156	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.155	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.154	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.153	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.152	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.151	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.150	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.149	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.148	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.147	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.146	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.145	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.144	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.143	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.142	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.141	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.140	tracks/php/exercises/flatten-array/example.php