rename_it.php

<?php
if (empty($argv[1])) {
    exit("\n" . 'You need to specify a new name of package.');
}
$new_name = $argv[1];
$new_name_lower = strtolower($new_name);
$start = dirname(__FILE__);
// --
$old_name = 'AppTemplate';
$old_name_lower = strtolower($old_name);
$dirs = scandir($start);

$tmp = explode('/', $start);
array_pop($tmp);
$end = implode('/', $tmp) . '/' . $new_name;
@rename($start, $end);
rename_extra($end, [$old_name, $old_name_lower], [$new_name, $new_name_lower]);


/**
 * Recursive rename of files and its content
 *
 * @param string $start_path Where to start
 * @param array $find Array with values to rename
 * @param array $replace Array with values for replacement
 *
 * @return void
 */
function rename_extra($start_path, $find = [], $replace = [])
{
    $items = scandir($start_path);
    foreach ($items as $item) {
        if (strpos($item, '.') === 0) {
            continue;
        }
        $old_path = str_replace('//', '/', $start_path . '/' . $item);

        if (strpos($old_path, $find[1]) !== false) {
            $new_path = str_replace('//', '/', $start_path . '/' . str_replace($find, $replace, $item));
            if (!rename($old_path, $new_path)) {
                exit("\nCould not rename $old_path to $new_path");
            }
        } else {
            $new_path = $old_path;
        }

        echo $new_path . "\n";
        if (is_dir($new_path)) {
            rename_extra($new_path, $find, $replace);
        } else {
            $content = file_get_contents($new_path);
            $content = str_replace($find, $replace, $content);
            file_put_contents($new_path, $content);
        }
    }
}