Re: Legal $_SESSION names

On Sat, 2009-05-23 at 14:25 +0100, Stuart wrote: > 2009/5/22 tedd <tedd@sperling.com>: > > Hi gang: > > > > While we're discussing what's legal in css, here's a couple of things > > I've > > found about sessions. > > > > I found that starting a session with a number doesn't work. > > > > $myvar = $_SESSION['1myvar']; > > This won't work because $1myvar is not a valid variable. I believe the > only reason this restriction is in place due to register_globals. I > dunno if this restriction has been lifted since register_globals being > removed from PHP6 but of all the "annoyances" in PHP this is a pretty > minor example. > > > I also found that dumping a session to a variable with the same name may > > cause problems, such as: > > > > $myvar = $_SESSION['myvar']; > > > > Regardless of what anyone may say to the contrary, it doesn't work > > everywhere. I found that out the hard way. The fix is simply to use a > > different name for the variable, such as: > > > > $my_var = $_SESSION['myvar']; > > I'm just guessing but I'd say this has to do with the way superglobals > are created. Since 5.0.0 a configuration option called > auto_globals_jit has existed and it defaults to being on. It causes > the creation of superglobals to be delayed until they are actually > used. I don't know how it interacts with register_globals (the manual > says it'll be disabled if register_globals is on) but it makes sense > to me that this issue is related to that. > > I'd say you've found a bug, but you'll need a repeatable example > before you can report it. > > -Stuart > > -- > http://stut.net/ > You could get around it with something like this: $myvar = $_SESSION['something']['1myvar']; Ash www.ashleysheridan.co.uk