PHP access class inside another class

Question

So I have two classes like this:

class foo {
    /* code here */
}
$foo = new foo();
class bar {
    global $foo;
    public function bar () {
        echo $         


        

Answer 1

An option is to autoload your classes. Also, if you make your class a static class, you can call it without $classname = new classname():

//Autoloader
spl_autoload_register(function ($class) {
$classDir = '/_class/';
$classExt = '.php';
include $_SERVER['DOCUMENT_ROOT'] . $classDir . $class . $classExt;
});

//Your code
class bar {
    private static $foo = null; //to store the class instance

    public function __construct(){
        self::$foo = new foo(); //stores an instance of Foo into the class' property
    }

    public function bar () {
        echo self::$foo->something();
    }
}

If you convert your class (foo) into a static class

//Autoloader
spl_autoload_register(function ($class) {
$classDir = '/_class/';
$classExt = '.php';
include $_SERVER['DOCUMENT_ROOT'] . $classDir . $class . $classExt;
});

//Your code
    class bar {
        public function bar () {
            echo foo::something();
        }
    }