Concatenation of variables

[bigc79]

Hi there...

general query for all you out there, I am looking at creating a new variable name that is constructed out of two other variable names.

for instance:

I have a set of variables called $value1, $value2 $value3 etc... that are automatically created by a for loop on a page, each $value(number) is asigned a value, [lets say 100].

ok got that 🙂

I submit those values to another page and I want to creat an array of all those variables, if I put in the following:

---

for($i = 0; $i < $how_many; $i++)
{
$value_array[$i] = $value1;
}

---

I can populate the array with the variable $value1 but I want to insert in to the next element $value2 and then $value3 (and so on)so I need to concatenate the ($value) and ($i+1) to create the variable name but if I create a new variable name like below

---

$variable = "\$value" . $i+1;

---

then the $variable will equal "$value1" (a string) not actually the instance of the $value1 as passed from the other table.

sigh ok... did that make sence???

any one know how to help?

If so Please do 🙂

Clive

[Anon]

You need to use variable variables.

---

for($i = 0; $i < $how_many; $i++)
{
$temp = "value$i";
$value_array[$i] = $$temp;
}

---

You create a variable and put the name of the variable that you want to access inside of it, and then you access that variable using the $$ operator.

[bigc79]

Thanks Rob, your a star... that worked just fine 🙂

Again, thanks