PHP 和 Ruby 的基本常量变量、类的简单书写
PHP 变量、常量
变量：$var = "1000";
常量：define("ROOT","/tmp");
类常量：const aaa = 10;
类变量：同样还是$xxx;
全局变量: global $xxx; $GLOBALS['xxxx']

Ruby 变量、常量
变量：aa = 10 或者 _a = 10 小写字母或者下划线开头
常量：Ma = 10
实例变量：@hello = 10
类变量：@@t = 20
全局变量：$aa = 10

PHP基本的类实例化

<?phpclass demo {    function __construct($name) {        $this -> name = $name;    }    function say() {        echo $this -> name;    }    function __destruct() {    }}$p = new demo("yang");$p -> say();

Ruby基本的类实例化

class Hello    def initialize( name )         @name = name    end    # php function __construct    def hello_rb        puts "hello"+@name    endendhi = Hello.new("phper.yang")hi.hello_rb

PHP类的简单继承

class my {    function say() {        echo "hello ";    }}class hhy extends my {    function yang() {        echo "yang";    }}$p = new hhy();$p -> say();$p -> yang();

Ruby类的简单继承

class Hello  def t1     yang = "hello ruby"     puts yang  endendclass Newhello < Hello   def t2      yphp = "hello php"      puts yphp   endendp = Newhello.newp.t1p.t2

ruby 的类名首字母必须大写