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<?php namespace Fuse\Helpers;

function deep_value($assoc, $path, &$list = [])

{

    if (!$path) {

        // If there's no path left, we've gotten to the object we care about.

        $list[] = $assoc;

    } else {

        $dotIndex = mb_strpos($path, '.');

        $firstSegment = $path;

        $remaining = null;

        if ($dotIndex !== false) {

            $firstSegment = mb_substr($path, 0, $dotIndex);

            $remaining = mb_substr($path, $dotIndex + 1);

        }

        $value = isset($assoc[$firstSegment])

            ? $assoc[$firstSegment]

            : null;

        if (!is_null($value)) {

            if (!$remaining && (is_string($value) || is_int($value) || is_float($value))) {

                $list[] = (string) $value;

            } elseif (is_list($value)) {

                // Search each item in the array.

                for ($i = 0, $len = sizeof($value); $i < $len; $i++) {

                    deep_value($value[$i], $remaining, $list);

                }

            } elseif ($remaining) {

                // An associative array. Recurse further.

                deep_value($value, $remaining, $list);

            }

        }

    }

    return $list;

}