diff --git a/i-o/README.md b/i-o/README.md
index 60bd2b6..a8748d9 100644
--- a/i-o/README.md
+++ b/i-o/README.md
@@ -1,17 +1,15 @@
-```php
-<?php
-require_once './TraitTest.php';
-class MainClass {
-  use TraitTest;
+# Input / Output
 
-  private function __construct($data)
-  {
-    $this->setData($data);
-  }
+This section covers Array functionality on IO
 
-  public static function getInstance($data)
-  {
-    if (!empty($data)) return new static($data);
-  }
-}
-```
\ No newline at end of file
+# Code Examples
+[Here](code)
+
+# PHP Official Documentation
+
+* https://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html
+* http://php.net/manual/pt_BR/function.fopen.php
+* http://php.net/manual/pt_BR/function.fclose.php
+* http://php.net/manual/en/book.sockets.php
+* http://php.net/manual/pt_BR/ref.filesystem.php
+* http://php.net/manual/pt_BR/class.splfileinfo.php
\ No newline at end of file
diff --git a/i-o/index.php b/i-o/index.php
index c286351..3bf1176 100644
--- a/i-o/index.php
+++ b/i-o/index.php
@@ -1,11 +1,5 @@
 <?php
 declare(strict_types=1);
-//https://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html
-//http://php.net/manual/pt_BR/function.fopen.php
-//http://php.net/manual/pt_BR/function.fclose.php
-//http://php.net/manual/en/book.sockets.php
-//http://php.net/manual/pt_BR/ref.filesystem.php
-//http://php.net/manual/pt_BR/class.splfileinfo.php
 // $file = fopen('./zce.txt', 'w+');
 // print_r($file);
 // fclose($file);
@@ -27,25 +21,24 @@
 //   print_r(file_get_contents($file_path));
 // } 
 //stream contexts
-// $options = [
-//   'ftp' => [
-//     'proxy' =>  'ftp://proxy:3128'
-//   ],
-// ];
-// $params = [];
-// $context = stream_context_create($options,  $params);
-// print(file_get_contents('ftp://speedtest.tele2.net/',  false,  $context));
-// exit;
-// print_r(file_get_contents('./zce.txt'));
-// $contexto = stream_context_create([
-//       'http' => [
-//       'method' => 'POST',
-//       'header' => 'Content-Type:  application/x-www-form-urlencoded',
-//       'content' => 'livro=php',
-//     ],
-//   ]
-// );
-// print file_get_contents('http://marabesi.com',  false,  $contexto);
+$options = [
+  'ftp' => [
+    'proxy' =>  'ftp://proxy:3128'
+  ],
+];
+$params = [];
+$context = stream_context_create($options,  $params);
+print(file_get_contents('ftp://speedtest.tele2.net/',  false,  $context));
+exit;
+print_r(file_get_contents('./zce.txt'));
+$context = stream_context_create([
+      'http' => [
+      'method' => 'GET',
+      'header' => 'Content-Type:  text/html',
+    ],
+  ]
+);
+print file_get_contents('http://www.google.com',  false,  $context);
 
 // $put  = fopen('php://input',  'r');
 // print fgets($put);
diff --git a/i-o/src/fclose.php b/i-o/src/fclose.php
new file mode 100644
index 0000000..a73442c
--- /dev/null
+++ b/i-o/src/fclose.php
@@ -0,0 +1,3 @@
+<?php
+$file = fopen('./zce.txt', 'w+');
+fclose($file);
\ No newline at end of file
diff --git a/i-o/src/file_get_contents.php b/i-o/src/file_get_contents.php
new file mode 100644
index 0000000..cafc424
--- /dev/null
+++ b/i-o/src/file_get_contents.php
@@ -0,0 +1,3 @@
+<?php
+$file_path = './zce2.txt';
+file_get_contents($file_path);
diff --git a/i-o/src/file_put_contents.php b/i-o/src/file_put_contents.php
new file mode 100644
index 0000000..7f9c3d0
--- /dev/null
+++ b/i-o/src/file_put_contents.php
@@ -0,0 +1,3 @@
+<?php
+$file_path = './zce2.txt';
+file_put_contents($file_path, 'Easy way to create a file!');
diff --git a/i-o/src/fopen.php b/i-o/src/fopen.php
new file mode 100644
index 0000000..e0c3b05
--- /dev/null
+++ b/i-o/src/fopen.php
@@ -0,0 +1,3 @@
+<?php
+$file = fopen('./zce.txt', 'w+');
+print_r($file);
diff --git a/i-o/src/fwrite-fgets-fread-feof-example.php b/i-o/src/fwrite-fgets-fread-feof-example.php
new file mode 100644
index 0000000..248264b
--- /dev/null
+++ b/i-o/src/fwrite-fgets-fread-feof-example.php
@@ -0,0 +1,10 @@
+<?php
+$studing_zce = 'Studing for ZCE';
+$file = fopen('./zce.txt', 'w+');
+fwrite($file, $studing_zce, strlen($studing_zce));
+rewind($file);
+while (feof($file) !== true) {
+  print fread($file, filesize('./zce.txt'));
+  print fgets($file);
+}
+fclose($file);
\ No newline at end of file