Both require() and include() are identical in every way except upon
failure, require will shout a Fatal Error while include provides a
Warning.
Fatal warnings don't allow the code to continue, Warnings don't have such
an affect.
The current include/require docs reflect the status of pre 4.0.2 and is in
the process of being updated.
regards,
Philip Olson
On Tue, 23 Oct 2001, Steve Cayford wrote:
> So both include() and require() *are* subject to conditional statements
> in the code? Guess I missed that.
>
> Thanks.
>
> -Steve
>
> On Tuesday, October 23, 2001, at 01:00 AM, Rasmus Lerdorf wrote:
>
> > That's outdated. The only difference today is that if a file can't be
> > included/required for some reason it is a fatal error with require and a
> > warning with include.
> >
> > -Rasmus
> >
> > On Tue, 23 Oct 2001, Jason G. wrote:
> >
> >> From the manual:
> >>
> >> Unlike include(), require() will always read in the target file, even
> >> if
> >> the line it's on never executes. If you want to conditionally include a
> >> file, use include(). The conditional statement won't affect the
> >> require().
> >> However, if the line on which the require() occurs is not executed,
> >> neither
> >> will any of the code in the target file be executed.
> >>
> >> Similarly, looping structures do not affect the behaviour of require().
> >> Although the code contained in the target file is still subject to the
> >> loop, the require() itself happens only once.
> >>
> >>
> >>
> >>
> >>
> >> At 08:48 AM 10/23/2001 +0900, Yasuo Ohgaki wrote:
> >>> Jtjohnston wrote:
> >>>
> >>>> Coverting from perl ...
> >>>> What's the differencw between require and include? Where, when, why?
> >>>
> >>>
> >>> I forgot from which version, but current PHP's require/include works
> >>> the
> >>> same way except
> >>>
> >>> - require() raise fatal error, if it can't find file
> >>> - include() raise warning, if it can't find file
> >>>
> >>>
> >>> requrie_once()/include_once() works almost the same as
> >>> require()/include()
> >>> except they include file only once. (Hash table is used to determine
> >>> if
> >>> files are included or not)
> >>>
> >>> See also get_{required|included}_files()
> >>>
> >>> --
> >>> Yasuo Ohgaki
> >>>
> >>>
> >>> --
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> >>>
> >>
> >
> >
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