On Sep 26, 2009, at 22:21, Scott Haneda wrote:
Thanks for all the info, very interesting. I am glad this came up,
as there is a pretty big poop fest over on the twitter dev mailing
list about their user_id breaking into 64 bit territory.
They return JSON for most of everything, and most devs are using
php5, which most hosts are building out as 32 bit. From what I can
gather, when a 64 bit value comes in as JSON and php gets ahold of
it, it will convert it to a float, and essentially break things.
I was not aware of this issue. But it sounds like either a bug in PHP,
or in the JSON spec or implementation, or in the Twitter API, so
nothing particularly interesting for MacPorts here, except of course
the ability to build php5 as 32-bit or 64-bit to test this issue.
The suggested solution is to built php5 as 64 bits. Many apparently
can not do this.
How does this factor into MacPorts with php5, and all the php5-*
modules you can add, with their dependencies? I am going to wager a
good deal of those are not able to be built as 64 bit at this time,
does that mean php5 also can not be built 64 bit as well, or the
internal core of php5 can, but the modules will happily mix and match?
For what it is worth, I am running 32 bit php, as that is what
MacPorts built for me on a PPC dual g5, and I will have to deal with
this issue in a twitter app. Unless of course it is simple to go 64
bit php5.
For me, I figure, JSON is just a string anyway, so I can simply
massage that string a little, and store it in mysql as a 64 bit
value, which even under a 32 bit build will handle it fine. I am
not aware of any direct php modification I would need to do on the
JSON output, as long as I can store it safely in MySql, I am not
seeing much problem for my apps.
php5 builds fine 64-bit for me on Snow Leopard, and so do the modules
I've installed. I haven't tried installing them all yet. You're free
to try 64-bit builds on your G5. Set build_arch to ppc64 in
macports.conf and rebuild all ports. You may want to set
universal_archs to ppc ppc64 and rebuild all ports universal; this way
in case there are some where 64-bit builds are not possible you can
still build them 32-bit instead of being unable to build them at all.
Please file bugs if you find any ports that don't work either as 64-
bit only or as 64-bit/32-bit universal.
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