ZEND_UNARY_MINUS 311 Zend/zend_ast.c case ZEND_UNARY_MINUS: ZEND_UNARY_MINUS 1040 Zend/zend_language_parser.y | '-' static_scalar_value { $$.u.ast = zend_ast_create_unary(ZEND_UNARY_MINUS, $2.u.ast); }