Passing arrays to other php pages

Anon

Hi!

As far as I can see the scope for a variable is only limited to be 'global' in one .php page as long as that page is visible/active. How can I pass an array variable that I've created in one page to another page?
I figured that putting it in a DB is to complicated.
Posting a form with inputs like:
<INPUT TYPE=hidden NAME="arr['1']" VALUE="one">
<INPUT TYPE=hidden NAME="arr['2']" VALUE="two">
is possible but is really complex for large and multidimensional arrays. Any suggestions?
Thanks in advance!
Regards,

Tom van der Geer

Anon

You should register it in a session, or
serialize it in a cookie, or serialize
it and pass it in a hidden form field.

Ciao

Anon

Hi
Put the element you want to have an array inside the loop and also initialize one variable and increment it inside your loop.Like this.
$i=0;
while(condition)
{
//Name the form element like this
<input type=..... name=name<?echo($i)?>>
$i++;
}
Now you will be having the total number of variables in $i and create one hidden variable.
<input type="hidden" name=ctr value=<?echo($i)?>
Now our work in page2

create one for loop and assign the value for each variable. Like this.

for($j=0;$j<$ctr;$j++)
{
$temp="name".$i;
$temp1=${$temp};
//Here you will get all the elements one by one and it will be in $temp1.You can check the content of each value by printing $temp1.
print($i."value =".$temp1);
}

Since we are assigning the element name dynamically it will work for 'N' number of elements(may be fetched from database).
Hope this will give some idea.

srini

Anon

Me and a friend had a similar problem
We needed create two sets of drop down boxes with variable sizes and wanted to get the selections in a two-dimensional array.
Here\'s one way of doing it:

for($i = 0; i < size_of_larger_array_needed; i++)
{
if($i < size_of_first_array)
{
echo \"<select name=\'arr[one][\".$i.\"]\'>...</select>\";
}
if($i < size_of_second_array)
{
echo \"<select name=\'arr[two][\".$i.\"]\'>...</select>\";
}
}

This creates the two-dimensional array $arr that can be accessed using $arr[\"one\"][$i] and $arr[\"two\"][$i]. Note that using either \'\' or \"\" in the array definition in the <select name> tag may cause errors.
Using numbered arrays works like this as well.
Just experiment with it. I was running this on PHP 4.0.4.