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-2.2.1.139	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.138	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.137	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.136	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.135	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.134	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.133	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.132	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.131	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.130	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.129	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.128	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.127	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.126	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.125	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.124	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.123	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.122	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.121	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.120	tracks/php/exercises/flatten-array/example.php