Call static method with class name stored as instance variable

Question

Consider this script

class B
{
    static public function hi() { echo \"hi\\n\"; }
}
class A
{
    private $name = \'B\';

    public function __construct()
             


        

Answer 1

The current implementation of Zend PHP parser supports only static method calls that are made directly on a class name or a variable. Here is the grammar:

%token T_PAAMAYIM_NEKUDOTAYIM ":: (T_PAAMAYIM_NEKUDOTAYIM)"

function_call:
    name argument_list
        { $$ = zend_ast_create(ZEND_AST_CALL, $1, $2); }
|   class_name T_PAAMAYIM_NEKUDOTAYIM member_name argument_list
        { $$ = zend_ast_create(ZEND_AST_STATIC_CALL, $1, $3, $4); }
|   variable_class_name T_PAAMAYIM_NEKUDOTAYIM member_name argument_list
        { $$ = zend_ast_create(ZEND_AST_STATIC_CALL, $1, $3, $4); }
|   callable_expr argument_list
        { $$ = zend_ast_create(ZEND_AST_CALL, $1, $2); }

Source: https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L890