update php example and add sauce php example

sample-code/examples/php/SauceTest.php

@@ -0,0 +1,49 @@
+<?php
+// To run this test, install Sausage (see http://github.com/jlipps/sausage-bun
+// to get the curl one-liner to run in this directory), then run:
+//     vendor/bin/phpunit SauceTest.php
+
+require_once "vendor/autoload.php";
+define("APP_URL", "https://raw.github.com/appium/appium/master/assets/TestApp.app.zip");
+
+class SauceTest extends Sauce\Sausage\WebDriverTestCase
+{
+    protected $numValues = array();
+
+    public static $browsers = array(
+        array(
+            'browserName' => '',
+            'seleniumServerRequestsTimeout' => 240,
+            'desiredCapabilities' => array(
+                'platform' => 'Mac 10.8',
+                'device' => 'iPhone Simulator',
+                'app' => APP_URL,
+                'version' => '',
+            )
+        )
+    );
+
+    public function elemsByTag($tag)
+    {
+        return $this->elements($this->using('tag name')->value($tag));
+    }
+
+    protected function populate()
+    {
+        $elems = $this->elemsByTag('textField');
+        foreach ($elems as $elem) {
+            $randNum = rand(0, 10);
+            $elem->value($randNum);
+            $this->numValues[] = $randNum;
+        }
+    }
+
+    public function testUiComputation()
+    {
+        $this->populate();
+        $buttons = $this->elemsByTag('button');
+        $buttons[0]->click();
+        $texts = $this->elemsByTag('staticText');
+        $this->assertEquals(array_sum($this->numValues), (int)($texts[0]->text()));
+    }
+}