Srv OS compatibility and $_ENV

[awebguynow]

I'm running PHP on my local WinXP box, but will host on *nix Srv.

So I started to use and OS detect, something like (psuedo-code):
if ( strpos($_ENV['OS'], "Win") === false ) { *nix } else { Win }

but its not working right, and I wondered why.
My OS looks to be set, as shown by WinXPset
ditto for output from phpinfo()
But the $_ENV global, looks like an empty array Array ( )
whats the story ?

Of course I've the incompatible versions of Apache/PHP: A2.2x and
php5.1.x
patched with php5apache2_2.dll
( thats the only reason I didn't cry after installing 5.1.4 and then
having 5.1.5 come out the next day ) It makes you wonder, what part
of 5.1.x am I really using, if any

my settings from phpinfo():
Apache Version Apache/2.2.3 (Win32) PHP/5.2.0RC2-dev

[Alvaro G. Vicario]

*** awebguynow escribió/wrote (22 Aug 2006 13:36:43 -0700):

I'm running PHP on my local WinXP box, but will host on *nix Srv.

So I started to use and OS detect, something like (psuedo-code):
if ( strpos($_ENV['OS'], "Win") === false ) { *nix } else { Win }

This can't be a good idea... I presume you need to use certain OS-dependent
feature. Why don't you just check for that specific feature?

Anyway, in the "Predefined constants" chapter I see PHP stores the value
for you so you don't depend on environmental variables:

Core Predefined Constants

These constants are defined by the PHP core. This includes PHP, the Zend
engine, and SAPI modules.

PHP_OS (string)

But the $_ENV global, looks like an empty array Array ( )
whats the story ?

Check the variables_order directive in "php.ini". There's also a comment
about it in the file:

; - variables_order = "GPCS" [Performance]
; The environment variables are not hashed into the $_ENV. To access
; environment variables, you can use getenv() instead.

--
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++ Mi sitio sobre programación web: http://bits.demogracia.com
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[awebguynow]

I appreciate your comments and now know the skinny on this subject. I
can use
getenv()
PHP_OS
php_uname()

I'm just very suprised that phpinfo() would report each ENV var, but
these would not go into $_ENV
Also, I did not see PHP_OS mentioned in the manual, but it appears to
be a Standard part of the lang, and I saw quite a few references
online.

[Alvaro G. Vicario]

*** awebguynow escribió/wrote (24 Aug 2006 13:56:59 -0700):

Also, I did not see PHP_OS mentioned in the manual, but it appears to
be a Standard part of the lang, and I saw quite a few references
online.

It can be found in:

Main : Appendixes : List of Reserved Words : Predefined Constants

I have the extended CHM version and I just typed "pred" in the index input
box ;-)
--
-+ http://alvaro.es - Álvaro G. Vicario - Burgos, Spain
++ Mi sitio sobre programación web: http://bits.demogracia.com
+- Mi web de humor con rayos UVA: http://www.demogracia.com
--