diff --git a/src/danog/MadelineProto/Connection.php b/src/danog/MadelineProto/Connection.php
index 66811e3d..e4b48af6 100644
--- a/src/danog/MadelineProto/Connection.php
+++ b/src/danog/MadelineProto/Connection.php
@@ -88,6 +88,7 @@ class Connection
                 if (!(get_resource_type($this->sock) == 'file' || get_resource_type($this->sock) == 'stream')) {
                     throw new Exception("Connection: couldn't connect to socket.");
                 }
+
                 return fwrite($this->sock, $what);
                 break;
             default:
diff --git a/src/danog/MadelineProto/Session.php b/src/danog/MadelineProto/Session.php
index dceaea2f..ac60eb9c 100755
--- a/src/danog/MadelineProto/Session.php
+++ b/src/danog/MadelineProto/Session.php
@@ -105,7 +105,7 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
      */
     public function send_message($message_data)
     {
-        switch ($this->settings["protocol"]) {
+        switch ($this->settings['protocol']) {
             case 'tcp_full':
                 $message_id = $this->struct->pack('<Q', (int) ((time() + $this->timedelta) * pow(2, 30)) * 4);
                 if (($this->auth_key == null) || ($this->server_salt == null)) {
@@ -134,7 +134,7 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
      */
     public function recv_message()
     {
-        switch ($this->settings["protocol"]) {
+        switch ($this->settings['protocol']) {
             case 'tcp_full':
                 $packet_length_data = $this->sock->read(4);
                 if (strlen($packet_length_data) < 4) {
diff --git a/src/danog/MadelineProto/TL/TL.php b/src/danog/MadelineProto/TL/TL.php
index 8219ec39..5aec32e7 100644
--- a/src/danog/MadelineProto/TL/TL.php
+++ b/src/danog/MadelineProto/TL/TL.php
@@ -16,7 +16,7 @@ class TL
 {
     public function __construct($filename)
     {
-        if(is_array($filename)) {
+        if (is_array($filename)) {
             $TL_dict = [];
             foreach ($filename as $file) {
                 $TL_dict = array_replace(json_decode(file_get_contents($file), true), $TL_dict);