Add upload file example; Update httpbin.org protocol

Author: zachborboa

examples/put.php

@@ -3,9 +3,9 @@
 
 use \Curl\Curl;
 
-// curl -X PUT -d "id=1&first_name=Zach&last_name=Borboa" "http://httpbin.org/put"
+// curl -X PUT -d "id=1&first_name=Zach&last_name=Borboa" "https://httpbin.org/put"
 $curl = new Curl();
-$curl->put('http://httpbin.org/put', array(
+$curl->put('https://httpbin.org/put', array(
     'id' => 1,
     'first_name' => 'Zach',
     'last_name' => 'Borboa',

examples/upload_file.php

@@ -0,0 +1,17 @@
+<?php
+require '../src/Curl/Curl.php';
+
+use \Curl\Curl;
+
+$myfile = curl_file_create('cats.jpg', 'image/png', 'test_name');
+
+$curl = new Curl();
+$curl->post('https://httpbin.org/post', array(
+    'myfile' => $myfile,
+));
+
+if ($curl->error) {
+    echo 'Error: ' . $curl->error_message . "\n";
+} else {
+    echo 'Success' . "\n";
+}