Re: __toString() must return a string value

Johannes Schlüter writes: > I didn't check the code, before, but go up 3 or 4 lines and you read > RETURN_FALSE in case arguement parsing fails - usually we return null in > that case ... "Usually" is the key word, isn't it? ;) > php_printf("before calling zend_call_method: %x\n", return_value); > zend_call_method_with_1_params(&zend_object, > Z_OBJCE_P(zend_object), NULL, "format", &return_value, fmt); > php_printf("after calling zend_call_method: %x\n", return_value); > > You will see that return_value is different there, whereas with Hmm... is it documented? > php_printf("before setting retval: %x\n", return_value); > RETVAL_STRING("a new return value", 1); > php_printf("after setting retval: %x\n", return_value); > > the address will be the same. That's a macro, so it's obvious for me at least. > And no the problem is not within Zend/PHP APIs but C pointer stuff. As long as developer knows what API does with the pointers. Yes. Thank you Johannes! It clarified many things for me. Piotras