add simple php test example

sample-code/examples/php/SimpleTest.php

@@ -0,0 +1,43 @@
+<?php
+require_once "vendor/autoload.php";
+
+class SimpleTest extends Sauce\Sausage\WebDriverTestCase
+{
+    protected $numValues = array();
+
+    public static $browsers = array(
+        array(
+            'local' => true,
+            'port' => 4723,
+            'browserName' => 'iOS',
+            'desiredCapabilities' => array(
+                'version' => '6.0',
+                'platform' => 'Mac'
+            )
+        )
+    );
+
+    public function setUp()
+    {
+        parent::setUp();
+    }
+
+    protected function populate()
+    {
+        $elems = $this->byTagName('textField');
+        foreach ($elems as $elem) {
+            $randNum = rand(0, 10);
+            $elem->value($randNum);
+            $this->numValues[] = $randNum;
+        }
+    }
+
+    public function testUiComputation()
+    {
+        $this->populate();
+        $buttons = $this->byTagName('button');
+        $buttons[0]->click();
+        $texts = $this->byTagName('staticText');
+        $this->assertEqual(int($texts[0]->text), array_sum($this->numValues));
+    }
+}