PHP Common Magic Method (__tostring Magic method)

<? PHP // file name: index.php Define (' A ',__dir__); include '/imooc/loader.php '; Spl_autoload_register (' \\imooc\\loader::autoload '); $Object new \imooc\Object(); Echo $Object; // An object cannot be output directly from a string, and when the object is converted to a string, it automatically callbacks the __tostring method /* output:        haha/ haha * /

<? phpnamespace Imooc; // file name: object.php class Object {    function __tostring ()/// when the object is converted to a string, it will automatically callback the __tostring method     {         return "Haha";}    }

PHP Common Magic Method (__tostring Magic method)