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-2.2.1.78	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.77	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.76	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.75	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.74	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.73	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.72	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.71	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.70	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.69	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.68	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.67	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.66	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.65	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.64	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.63	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.62	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.61	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.60	tracks/php/exercises/flatten-array/example.php
trackler-2.2.1.59	tracks/php/exercises/flatten-array/example.php