libgmp was just the first shot as it has functions to convert from arbitrary binary data to string and vice versa, mpz_import and mpz_export. That's what should work fine across platforms. Looking at the type definitions here http://lxr.php.net/xref/PHP_5_5/ext/date/lib/timelib_structs.h#70 i wouldn't exclude possible platform issues. Implementing that manually is a tricky job, could be done probably with more homework :)
What is the way you had in the mind to achieve the string<->integer conversions? Regards Anatol On Sun, March 10, 2013 23:11, Derick Rethans wrote: > On Sat, 9 Mar 2013, Anatol Belski wrote: > > >> On Sat, 2013-03-09 at 21:57 +0100, Gustavo Lopes wrote: >> >>> On Sat, 09 Mar 2013 21:36:41 +0100, Derick Rethans <der...@php.net> >>> wrote: >>> >>> >>>> On Tue, 5 Mar 2013, Anatol Belski wrote: >>>> >>>> >>>>> I've reworked the patch from >>>>> http://nebm.ist.utl.pt/~glopes/misc/date_period_interval_ser.diff >>>>> (mentioned by tony2001) for bug #63437, that seems to fix the >>>>> issue. That patch was ported back to 5.3 and adapted to the current >>>>> 5.4+. Both variants are posted to the ticket. >>>>> >>>> >>>> Serializing this as a base64 encoded variant of some binary data >>>> is not a good thing. If you want to serialize, it needs to output the >>>> same thigns that allow users to create the period or interval. >>> >>> I would agree in principle, but, as I explained before, there is a >>> problem. The DatePeriod class has 64-bit integers in its internal >>> structure. The PHP integer type cannot (in general) represent that >>> data. So the general method of getting the object data via >>> get_properties and serializing (and then using __set_state to convert >>> the array back) does not work unless you represent those 64-bit >>> integers with some non-integer type and do the conversions. >> >> So base64 seems to be only the doubtful point. Thriving to fix that, >> what if we could bring it in dependency of libgmp to serialize and read >> as strings (and maybe disable serialization otherwise)? > > Why do you need libgmp for that‽ > > > cheers, Derick -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
