add missing texttest fixture for PHP code

php/src/texttest_fixture.php

@@ -0,0 +1,35 @@
+<?php
+
+require_once 'gilded_rose.php';
+
+echo "OMGHAI!\n";
+
+$items = array(
+    new Item('+5 Dexterity Vest', 10, 20),
+    new Item('Aged Brie', 2, 0),
+    new Item('Elixir of the Mongoose', 5, 7),
+    new Item('Sulfuras, Hand of Ragnaros', 0, 80),
+    new Item('Sulfuras, Hand of Ragnaros', -1, 80),
+    new Item('Backstage passes to a TAFKAL80ETC concert', 15, 20),
+    new Item('Backstage passes to a TAFKAL80ETC concert', 10, 49),
+    new Item('Backstage passes to a TAFKAL80ETC concert', 5, 49),
+    // this conjured item does not work properly yet
+    new Item('Conjured Mana Cake', 3, 6)
+);
+
+$app = new GildedRose($items);
+
+$days = 2;
+if (count($argv) > 1) {
+    $days = (int) $argv[1];
+}
+
+for ($i = 0; $i < $days; $i++) {
+    echo("-------- day $i --------\n");
+    echo("name, sellIn, quality\n");
+    foreach ($items as $item) {
+        echo $item . PHP_EOL;
+    }
+    echo PHP_EOL;
+    $app->update_quality();
+}