combine Strings..??

[Anon]

I have a big problem with one of my variables. I hope someone can help me..

I want to print out a variable called $id_of_nr_1
but the problem is, that I have many other strings where only the number in the end changes. so I thought, that I can make a slope were I always add 1 to a certain variable ($count) and then print the other
strings like this:

echo $id_of_nr.$count;

but this doesn't work because the program thinks that "$id_of_nr" is a string by itself but certainly it isn't.

So my question is: How can I print out the
variable "$id_of_nr1" by using 1 as a variable called $count with the value "1"??

Thank you very much for any help!!

[Anon]

Enter the world of variable variables:

You are very close.

echo $id_of_nr.$count;

In effect you want to detatch that first $ sign from id_of_nr, and not use it until after $count has been concatenated.

echo ${'id_of_nr'.$count};

Note the quotes - you are wanting to use id_of_nr as a string, after all.

If $count is 4, for example, PHP will go

${'id_of_nr'.$count}
${'id_of_nr'.4}
${'id_of_nr4'}
$id_of_nr4

and peace will spread throughout the land :-)

[enchanted]

you may use an array, too 🙂

[Anon]

Thank you very much!!! Now I know how it works...