On 21/02/12 19:03, Ralf Lang wrote: >>> I see no reason why it would be not desirable to have PHP raise the >>> exception rather than putting more or less repeating code snippets all >>> around the place. That is why I am asking. >> >> You must be returning false/null somewhere. It's the same effort to >> instead throw an exception or to return a Ghost family member. > > The $baby->mother() method cannot know if the using code just wants to > collect the $mother object or execute code on it. It can also not know > if having no $mother is a problem or just a fact to deal with. > Unconditionally raising an exception is a bit overkill here, at least > if we would get an exception for trying to access (null)->mother(); > > Currently the user code must check each link of the chain if it is > available, although it is only interested if it can get the final > result or not. > > I'll follow the suggestion and write an RFC. return new NoMother;
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