dolphin/single-functions/paths-to-assoc-array.php

<?php
/**
 * dolphin. Collection of useful PHP skeletons.
 * Copyright (C) 2022  Johannes 'Banana' Keßler
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the COMMON DEVELOPMENT AND DISTRIBUTION LICENSE
 *
 * You should have received a copy of the
 * COMMON DEVELOPMENT AND DISTRIBUTION LICENSE (CDDL) Version 1.0
 * along with this program.  If not, see http://www.sun.com/cddl/cddl.html
 */

/**
 * out.txt: lines of a unix directory like structure
 * out.json: The json of the $out array
 */


$out = array();
$_w = &$out;

$handle = fopen("paths.txt", "r");
$count = 0; // debug only
if ($handle) {
    while (($line = fgets($handle)) !== false) {
        $_t = explode("/", $line);
        
        foreach ($_t as $value) {
        	$value = trim($value);
            if(empty($value)) continue;

            if(!isset($_w[$value])) {
                $_w[$value] = array("name" => $value, "children" => array());
                $_w = &$_w[$value]["children"];
            }
            else {
                $_w = &$_w[$value]["children"];
            }
        }

        $_w = &$out;

        /*
        $count++;
        if($count > 10) {
        	var_dump($out);
        	exit();
        }
        */
    }
    fclose($handle);
} else {
    // error opening the file.
    echo "error opening the file";
} 

//var_dump($out);
file_put_contents("out.json", json_encode($out, JSON_PRETTY_PRINT));