simple array question

[chad phillips]

Hi,

(Newbie to php). I am trying to read in a list of ids. Here is my
url

http://localhost/a.php?id=1&id=2&id=3

Then I just want to print out the ids, but I can't seem to get it
work. I search php.net and have tried a dozen things I can't get to
work

Tried:
print "<BR> 0=" . $_REQUEST['id'][0];
print "<BR> 1=" . $_REQUEST['id'][1];

But it only prints the last id.

Tried:
foreach ($_REQUEST['id'] as $value) {
print "<BR> $value";
}
Can someone help simple question?
thanks
chad

[Senator Jay Billington Bulworth]

In article <1e************ **************@ posting.google. com>,
ch**@windmeadow .com (chad phillips) wrote:

Hi,

(Newbie to php). I am trying to read in a list of ids. Here is my
url

http://localhost/a.php?id=1&id=2&id=3

What you want is:

http://localhost/a.php?id[]=1&id[]=2&id[]=3

Your code should work simply by changing the URL. It's not pretty, but
AFAIK it's the only way to pass an array through the query-string.

hth

--
Bulworth : fu***@fung.arg | My email address is ROT13 encoded, decode to mail
--------------------------|--------------------------------------------------
<http://www.phplabs.com/> | PHP scripts and thousands of webmaster resources!

[Jedi121]

Senator Jay Billington Bulworth a écrit le 15/03/2004 :

What you want is:

http://localhost/a.php?id[]=1&id[]=2&id[]=3

Your code should work simply by changing the URL. It's not pretty, but
AFAIK it's the only way to pass an array through the query-string.

hth

I suggest using serialize() and unserialize() to pass arrays in URL.
Beware of the protection of slashes, you may need to use stripslashes()
as well.

[Kevin Thorpe]

chad phillips wrote:

Hi,

(Newbie to php). I am trying to read in a list of ids. Here is my
url

http://localhost/a.php?id=1&id=2&id=3

Then I just want to print out the ids, but I can't seem to get it
work.

Why don't you pack up the ids in a delimited array if they're simple
numbers:

http://localhost/a.php?id=1,2,3

Then:
$ids = explode(',',$_G ET['id']);

foreach ($ids as $id) {
...
}

[chad phillips]

That would work. In perl I can read in
http://localhost/a.php?id=1&id=2&id=3. I figured there must be a way
to do the same thing in php. As someone pointed out I can change them
to http://localhost/a.php?id[]=1&id[]=2&id[]=3, but it seems weird
that php could handle id=1&id=2&id=3

thanks
chad
Kevin Thorpe <ke***@pricetra k.com> wrote in message news:<40******* *************** @news.easynet.c o.uk>...

chad phillips wrote:

Hi,

(Newbie to php). I am trying to read in a list of ids. Here is my
url

http://localhost/a.php?id=1&id=2&id=3

Then I just want to print out the ids, but I can't seem to get it
work.

Why don't you pack up the ids in a delimited array if they're simple
numbers:

http://localhost/a.php?id=1,2,3

Then:
$ids = explode(',',$_G ET['id']);

foreach ($ids as $id) {
...
}

[Andy Hassall]

On Mon, 15 Mar 2004 03:28:16 GMT, Senator Jay Billington Bulworth
<fu***@fung.arg > wrote:

In article <1e************ **************@ posting.google. com>,
ch**@windmeadow .com (chad phillips) wrote:

(Newbie to php). I am trying to read in a list of ids. Here is my
url

http://localhost/a.php?id=1&id=2&id=3

What you want is:

http://localhost/a.php?id[]=1&id[]=2&id[]=3

Your code should work simply by changing the URL. It's not pretty, but
AFAIK it's the only way to pass an array through the query-string.

IMHO this is the one thing that ASP does right over PHP (I suppose it has to
do _something_ right). Send multiple values and you get an array; you don't
need to put [] in the name, causing arguments about whether it's valid HTML (it
is).

If you have multiple elements with the same name at the moment, I'm not
entirely sure it's deterministic which value you'll end up with in PHP, and
non-determinism is generally annoying in a programming language. If it's
deterministic, I don't think it's documented, which is nearly as bad.

I think PHP ought to at least have a config option to accept multiple values
not ending in [] as arrays - although I suppose since PHP is open-source I
ought to just get on with it and write a patch if it bothers me ;-)

--
Andy Hassall <an**@andyh.co. uk> / Space: disk usage analysis tool
<http://www.andyh.co.uk > / <http://www.andyhsoftwa re.co.uk/space>

[Chung Leong]

Uzytkownik "Andy Hassall" <an**@andyh.co. uk> napisal w wiadomosci
news:do******** *************** *********@4ax.c om...

IMHO this is the one thing that ASP does right over PHP (I suppose it has to do _something_ right). Send multiple values and you get an array; you don't need to put [] in the name, causing arguments about whether it's valid HTML (it is).
That would cause massive number of type-mismatch errors, since PHP doesn't
automatically convert a scalar to an array with one item based on the
context.
If you have multiple elements with the same name at the moment, I'm not
entirely sure it's deterministic which value you'll end up with in PHP, and non-determinism is generally annoying in a programming language. If it's
deterministic, I don't think it's documented, which is nearly as bad.

There's documentation, kind of. The comment for variables_order in php.ini
reads "[r]egistration is done from left to right, newer values override
older values." In the OP, $_GET['id'] would yield 3.

[Andy Hassall]

On Mon, 15 Mar 2004 19:16:34 -0500, "Chung Leong" <ch***********@ hotmail.com>
wrote:

Uzytkownik "Andy Hassall" <an**@andyh.co. uk> napisal w wiadomosci
news:do******* *************** **********@4ax. com...

IMHO this is the one thing that ASP does right over PHP (I suppose it has

to

do _something_ right). Send multiple values and you get an array; you

don't

need to put [] in the name, causing arguments about whether it's valid

HTML (it

is).

That would cause massive number of type-mismatch errors, since PHP doesn't
automaticall y convert a scalar to an array with one item based on the
context.

Well, yes, there is that. Fair point.

But people have nearly got over register_global s, we need a new configuration
option to break things again ("Why do all my database rows have 'Array' in
them?!") ;-)

(Slightly related: I'm not that keen on arrays stringifying to Array either -
ought to raise a warning, I don't see how 'Array' is useful).

If you have multiple elements with the same name at the moment, I'm not
entirely sure it's deterministic which value you'll end up with in PHP,

and

non-determinism is generally annoying in a programming language. If it's
deterministic, I don't think it's documented, which is nearly as bad.

There's documentation, kind of. The comment for variables_order in php.ini
reads "[r]egistration is done from left to right, newer values override
older values." In the OP, $_GET['id'] would yield 3.

Variables_order is for the order that globals and $_REQUEST source their
information from; if it's GP then reading from left to right, GET variables are
overwritten by POST variables. But it doesn't say what happens for the multiple
GET variables of the same name.

3 seems the logical choice but I can't find the documentation that actually
says that.

The HTML spec at least guarantees the order they're sent out - same 'order
they appear in the document stream' (HTML4.01 sec 17.3.4).

--
Andy Hassall <an**@andyh.co. uk> / Space: disk usage analysis tool
<http://www.andyh.co.uk > / <http://www.andyhsoftwa re.co.uk/space>