全局对象_php教程

<?php

function A($class){

    if(isset($GLOBALS[$class])){

        if(is_object($GLOBALS[$class])){

            return $GLOBALS[$class];

        }

    }

    return $GLOBALS[$class] = new $class();

}

class MyClass{

    public function getStr(){

        return "hh";

    }

    public function getStr1(){

        return "cc";

    }

    public function getJson(){

        return json_encode(array("name"=>"你好"));

    }

    public function getAll(){

        $str1 = A("MyClass")->getStr();

        $str2 = A("MyClass")->getStr1();

        $json = A("MyClass")->getJson();

        return $str1.$str2." ".$json;

    }

}

echo A("MyClass")->getAll();