Rename all files in the current folder according to your list of file names

Renamer.php

<?php

/**
 * @author https://gist.github.com/sutlxwhx
 *
 * @version 0.2
 *
 * @license Apache License 2.0
 *
 */

namespace sutlxwhx;

class Renamer
{
    /**
     * @var string Set the property that will store the result
     */
    public $result;
    /**
     * @var string Set the absolute path to the current folder
     */
    private $current_folder = __DIR__ . DIRECTORY_SEPARATOR;

    /**
     * Renamer constructor.
     *
     * @param $list_of_current_files Name of the file where all necessary to process files are specified
     * @param $list_of_desired_files Name of the file where all new names are specified
     */
    public function __construct($list_of_current_files, $list_of_desired_files, $level_of_details)
    {
        $this->current = $list_of_current_files;
        $this->desired = $list_of_desired_files;
        $this->level = $level_of_details;
        @$this->current_array = file($this->current_folder . $this->current);
        @$this->desired_array = file($this->current_folder . $this->desired);
        if ($this->validate() == true) {
            return $this->result = $this->process();
        } else {
            return $this->result = "I was unable to validate your current or desired input files. Check if they don't match in the line length or if they even exists.";
        }

    }

    /**
     *  Check if both files exist
     *  Check if both files have the same length
     */
    private function validate()
    {
        if (count($this->current_array) == count($this->desired_array)) {
            return true;
        } else {
            return false;
        }
    }

    /**
     *  Specify the renaming process
     */
    private function process()
    {
        for ($i = 0; $i < count($this->current_array); $i++) {
            $current_file = trim($this->current_array[$i]);
            $desired_file = trim($this->desired_array[$i]);
            if (!file_exists($current_file)) {
                if ($this->level) {
                    print  "$current_file is missing!" . PHP_EOL;
                }
                continue;
            }
            rename($this->current_folder . $current_file, $this->current_folder . $desired_file);
            if ($this->level) {
                print  "$current_file was renamed." . PHP_EOL;
            }
        }
        if ($this->level) {
            print  "===" . PHP_EOL . "Renaming process is complete." . PHP_EOL;
        }
        return true;
    }
}

/**
 *  Initialise Renamer class and set the necessary parameters and level of details
 *  File must be present in the current directory
 *  Dump the result element of an object
 */
/* $rename_worker = new Renamer('current.txt', 'desired.txt', false); */
/* var_dump($rename_worker->result); */