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GET/POST whitespace stripping behavior

php.internals

Christopher Kunz

21 years ago

Hi,

I have a general question in regard to the PHP variable normalizing. Obviously,
leading whitespace in a variable is stripped, but why is trailing whitespace
converted to underscores?

Example:

/?foo=bar&+fooo=blah&foooooo+=ljalskdf

results in:

array(3) {
["foo"]=>
string(3) "bar"
["fooo"]=>
string(4) "blah"
["foooooo_"]=>
string(8) "ljalskdf"
}

I can understand why one would want to convert middle spaces (like in "foo+bar")
to underscores, but shouldn't trailing spaces be stripped instead? Am I missing
something?

Regards,

--ck

Pawel Bernat

21 years ago

On Mon, Aug 08, 2005 at 03:37:53PM +0200, Christopher Kunz wrote:

> Hi,
>
> I have a general question in regard to the PHP variable normalizing. Obviously,
> leading whitespace in a variable is stripped, but why is trailing whitespace
> converted to underscores?

See http://php.net/manual/en/function.urldecode.php

--
Paweł Bernat; uselessness' lover;
select'<asm'||chr(64)||'asm'||'.'||'flynet'||chr(46)||'pl>'as email;
Slowly and surely the unix crept up on the Nintendo user ...

Derick Rethans

21 years ago

On Mon, 8 Aug 2005, Pawel Bernat wrote:

> On Mon, Aug 08, 2005 at 03:37:53PM +0200, Christopher Kunz wrote:
> > Hi,
> >
> > I have a general question in regard to the PHP variable normalizing. Obviously,
> > leading whitespace in a variable is stripped, but why is trailing whitespace
> > converted to underscores?
> See http://php.net/manual/en/function.urldecode.php

He's asking 'why' not 'how'...

Derick

--
Derick Rethans
http://derickrethans.nl | http://ez.no | http://xdebug.org

Christopher Kunz

21 years ago

> He's asking 'why' not 'how'...
>

Right. My suspicion is that this is from the old days, when men were men and GET
variables were not in $_GET - but the inconsistency kinda bugs me. There has to
be someone who remembers why they wrote it that way...?

Anyone? Rasmus? :)

--ck