Stub in first demo bits

c&s20150725/demo.go

@@ -0,0 +1,31 @@
+package main
+
+import "fmt"
+
+type Person struct {
+	Name string
+}
+
+func NewPerson(name string) *Person {
+	return &Person{
+		Name: name,
+	}
+}
+
+func (p *Person) Wave() string {
+	return p.Name + " is waving"
+}
+
+func (p *Person) WaveAt(other *Person) string {
+	return p.Name + " waves at " + other.Name
+}
+
+func main() {
+	boo := NewPerson("Boo")
+	fmt.Printf("%#v\n", boo.Wave())
+
+	hay := NewPerson("Hay")
+	fmt.Printf("%#v\n", hay.Wave())
+
+	fmt.Printf("%#v\n", boo.WaveAt(hay))
+}

c&s20150725/demo.php

@@ -0,0 +1,25 @@
+<?php
+
+class Person {
+  public $name;
+
+  public function wave()
+  {
+    return $this->name. ' is waving';
+  }
+
+  public function waveAt(Person $waveTarget)
+  {
+    return $this->name . ' waves at ' . $waveTarget->name;
+  }
+}
+
+$boo = new Person();
+$boo->name = 'Boo';
+var_dump($boo->wave());
+
+$hay = new Person();
+$hay->name = 'Hay';
+var_dump($hay->wave());
+
+var_dump($boo->waveAt($hay));