Add Flickr photo search example

examples/flickr_photo_search.php

@@ -0,0 +1,29 @@
+<?php
+require '../src/Curl.class.php';
+
+
+function construct_url($photo, $size = 's', $ext = 'jpg') {
+    $url = 'http://farm' . $photo->farm . '.staticflickr.com/' .  $photo->server . '/' .
+        $photo->id . '_' . $photo->secret . '_' . $size . '.' . $ext;
+
+    return $url;
+}
+
+define('FLICKR_API_KEY', 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
+
+$data = array(
+    'method' => 'flickr.photos.search',
+    'api_key' => FLICKR_API_KEY,
+    'text' => 'happy',
+    'sort' => 'interestingness-desc',
+    'safe_search' => '3',
+    'format' => 'json',
+    'nojsoncallback' => '1',
+);
+
+$curl = new Curl();
+$curl->get('https://api.flickr.com/services/rest/', $data);
+
+foreach ($curl->response->photos->photo as $photo) {
+    echo '<img alt="" src="' . construct_url($photo) . '" height="75" width="75" />';
+}