ION_STRING is;
ION_CHECK(ion_writer_write_string(php_ion_obj(writer, ser->wri)->writer, ion_string_from_zend(&is, str)));
} else {
-
+ zval zs;
+ ZVAL_STR(&zs, str);
+ zend_call_method_with_1_params(ser->wri, NULL, NULL, "writeString", NULL, &zs);
}
}