Sorta dumb question...

Anon

...hey something I've noticed a lot of sites doing is somehow running PHP scripts without a filename-- so you see this in the URL bar:

www.mysite.com/?Key=Value&Key=Value etc.

How can I reference a script by just using the ? from the query string? I tried searching for something like this in the archives but had a hard time describing this question in search engine terms. 😃

Anyway, I dunno if the question is server or OS dependant or what, but any sorta insight would help. The site I'm developing is running on Linux Apache right now and will be ported over to a UNIX Apache setup when it's complete, if that helps.

Thanks!

--Alex

Anon

They are just relying on the default file. Using the question mark to start the query string directly after a slash sends the query string to whatever the default file happens to be for that directory. In other words, this...

http://www.yourdomain.com/index.php?...

... is equivalent to this...

http://www.yourdomain.com/?...

... presuming, of course, that index.php is your default file.

It doesn't even have to be PHP, so how do you know they are using PHP if you can't see the file name and its extension? 🙂

Anon

...makes perfect sense. Thanks 😃

"It doesn't even have to be PHP, so how do you know they are using PHP if you can't see the file name and its extension? 🙂"

Spider senses, baby.

--Alex

serfnomore

I'm coding a dynamic graphing routine and tried to define colors in an array, but when the graph was drawn, they were all black.

Is there a way to evaluate a string as a variable name?

Here's what I mean, say I have multiple colors to dynamicaly assign, from 0 to 3.
Is it possible to add the index of the color, 0 to 3 to a string and evaluate it to assign or recall a variable?

So, "$color" + 0
turns into "$color0"
turns into $color0

Thank you kn advance for any help you can provide.
Randy

Anon

You should repost this at the root of the forum; it looks like you posted it as a follow-up by accident.

mdmann

Perhaps use variable variables:

$var = "color" . $index;

So when,
$index=0, $var = "color0"
$index=1, $var = "color1";
$index=2, $var = "color2";
etc.

Then access the variable variable with

${$var}

Thus,

$var="color0" ==> ${$var} = $color0;
$var="color1" ==> ${$var} = $color1;
$var="color2" ==> ${$var} = $color2;

Is this what you are looking for?

Michael