Question

I have the following url /dir1/dir2/page.php

I need to generate a an array of the parent->child relation form the above url.

/dir1
    |
    |
    /dir2/
        |
        |
        page.php

eg :

array('dir1'=> array(
        'child' => array( 'dir2' => array(
                    'child' => array( 
                            'page' => array())))));

I tried using the recursive function but not able to figure out the logic.
Please let me know if you need some more explanation.

Answer 1

Here’s a recursive method (sorry for lack of comments, it’s late):

<?php
$urls = array('/dir1/dir2/page.php', '/dir1/dir3/page');

function url_to_array($url, $array=null) {
    if($array === null) {
        $array = array();
        $url_parts = explode('/', $url);

        return url_to_array($url_parts, $array);
    } else {
        if(count($url)) {
            $item = array_pop($url);
            if($item) {
                if(!$array) {
                    $array = array('page' => $array);
                } else {
                    $array = array($item => array('child' => $array));
                }
            }
            return url_to_array($url, $array);
        } else {
            return $array;
        }
    }
}

$array = array();
foreach($urls as $url) {
    $array = array_merge_recursive($array, url_to_array($url));
}

print_r($array);
?>

It prints out:

wraith:Downloads mwilliamson$ php recursive.php 
Array
(
    [dir1] => Array
        (
            [child] => Array
                (
                    [dir2] => Array
                        (
                            [child] => Array
                                (
                                    [page] => Array
                                        (
                                        )

                                )

                        )

                    [dir3] => Array
                        (
                            [child] => Array
                                (
                                    [page] => Array
                                        (
                                        )

                                )

                        )

                )

        )

)