Switch download() to curl with browser User-Agent and Referer header

file_get_contents with a stream context User-Agent was still getting 403
from download.phpbb.com on some servers. curl gives more control; adding
a realistic User-Agent and Referer header resolves the block.

README.md

@@ -5,7 +5,7 @@ Shell Script to update phpBB to current version.
 
 Usage: 
 
-Switch into you current phpBB root directory, then
+Switch into your current phpBB root directory, then
 
 `git clone https://git.24unix.net/tracer/phpbb_updates.git`
 
@@ -21,7 +21,7 @@ Then: Install composer (https://getcomposer.org/download/) and run
 `composer install`
 
 followed by:  
-`php update.php`
+`php update.php` or `/update.php`
 
 If you are using KeyHelp, replace
 
@@ -31,3 +31,5 @@ and
 
 
 
+
+

composer.json

@@ -9,6 +9,7 @@
 
 	"require": {
         "php-school/cli-menu": "^4.3",
+		"ext-curl": "*",
 		"ext-posix": "*",
 		"ext-pdo": "*"
 	},

update.php

@@ -1,9 +1,21 @@
-#!/usr/bin/keyhelp-php81 -d apc.enable_cli=1
+#!/usr/bin/env php
 <?php
-
 use App\UpdateController;
 
 require __DIR__ . '/vendor/autoload.php';
 
 $update = new UpdateController();
+
+$options = $update->parseOpts();
+
+// Help option
+if (array_key_exists(key: 'h', array: $options) || array_key_exists(key: 'help', array: $options)) {
+    $update->printHelp();
+    exit(0);
+}
+
+if (array_key_exists(key: 'd', array: $options) || array_key_exists(key: 'dry-run', array: $options)) {
+    $update->setDryRun();
+}
+
 $update->handleUpdate();