Search And Replace Config File in laravel

result.diff

diff --git a/config/app.php b/config/app.php
index c9960cd..29a3a1c 100644
--- a/config/app.php
+++ b/config/app.php
@@ -171,7 +171,7 @@ return [
          */
         App\Providers\AppServiceProvider::class,
         App\Providers\AuthServiceProvider::class,
-        // App\Providers\BroadcastServiceProvider::class,
+        App\Providers\BroadcastServiceProvider::class,
         App\Providers\EventServiceProvider::class,
         App\Providers\RouteServiceProvider::class,

snippet.php

$path_to_file = config_path('app.php');
$file_contents = file_get_contents($path_to_file);
$file_contents = str_replace("// App\Providers\BroadcastServiceProvider::class," , "App\Providers\BroadcastServiceProvider::class," ,$file_contents);
file_put_contents($path_to_file,$file_contents);

// the following can be used
// tab = \t
// newline = \n