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-2.2.1.119	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.118	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.117	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.116	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.115	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.114	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.113	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.111	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.110	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.109	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.108	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.107	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.106	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.105	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.104	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.103	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.102	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.101	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.100	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.99	tracks/php/exercises/flatten-array/example.php