Create an associative array from a string

Question

got a collection of objects which have an item called path, which has a kind of folding set by a string like: $path = '/some/sub/any/path/'

now I need to create an array from that string like:

array(
    'some'=>array(
        'sub'=>array(
            'objects'=>array(
                array('id'=>1),
                array('id'=>4)
            ),
            'any'=>array(
                'path'=>array(
                    'objects'=>array(
                        array('id'=>2),
                        array('id'=>3)
                    )
                )
            )
        )
    )
);

Actually I am looking for the best practice.

Any Idea, how to solve this in PHP?

you can not do this from a string, the string doesn't know the subitems of i.e. "sub", maybe you take a look at the RecursiveDirectoryIterator => php.net/manual/en/class.recursivedirectoryiterator.php — swidmann
– swidmann, Commented Sep 18, 2015 at 8:53

Roman Hocke · Accepted Answer · 2015-09-18 09:16:30Z

0

How about this? The function adds your custom path to the resulting tree and assigns custom value there. Also returns reference to the created node in case you need to modify it later.

function &add_path(&$tree, $path, $value = NULL) {

    if (!is_array($path))
        $path = explode('/', $path);

    $node =& $tree;
    foreach ($path as $step)
        $node =& $node[$step];

    $node = $value;
    return $node;
}

// test
$tree = array();

$c =& add_path($tree, 'a/b/c', 'c');
$c = 'cc';

$d = add_path($tree, 'a/b/d', 'd');
$y = add_path($tree, 'x/y', 'y');

var_dump($tree);
var_dump($c);
var_dump($d);
var_dump($y);

edited Sep 18, 2015 at 9:16

answered Sep 18, 2015 at 9:11

Roman Hocke

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