dynamically create variables by traversing array

mister_t101

Is there a way to dynamically create variables by traversing an array, then naming the variable with the position in the array?

for example....

for ($i=0; $i<count($_SESSION['order']); $i++)
{
create variable named $posei;
$posei=$i;
}

Thanks for the help

saraadmin

Yes, you can make PHP behave like LISP ;-)

By using the eval() fcuntion. It takes a string as an argument and interprets it as PHP code.

for ($i=0; $i<count($_SESSION['order']); $i++)
{
  eval("\$pose" . $i . "=\"$i\";");
}

Edit: that code probably won't work, not sure exactly what you want. But you should get the gist.

Jasp182

http://us3.php.net/manual/en/language.variables.variable.php

I think that's what you're looking for. The php manual calls it "variable variables", and though I have not yet used it, I believe it's as easy to modify your example code as follows:

for ($i=0; $i<count($_SESSION['order']); $i++)
{
$var_name = 'pose'.$i;
$$var_name =$i;
}

Installer

Or like this:

for ($i = 0; $i < count($_SESSION['order']); $i++) {
    ${'pose' . $i} = $i;
}

bokehman

I think the poster should ask the question properly!

samudasu

bokehman wrote:
I think the poster should ask the question properly!

I second that.

mister_t101

What would you consider a 'proper' question, and why wasn't mine 'proper'?

bokehman

mister_t101 wrote:
What would you consider a 'proper' question, and why wasn't mine 'proper'?

One that is not ambiguous. Ask your question so people know what you are asking; don't make them guess. The better the job you do when asking a question the high the chance of a relevant answer.

Installer

I thought the question was clear.

Assuming that I read it correctly. :rolleyes:

bokehman

Installer wrote:
I thought the question was clear.

You have chosen to guess that the "i" in "$posei;" is in some way related to the "i" in "$i". That is a guess and certainly not expressed in the original post.