Eval() ?

[Anon]

Hey, I have a bunch of variables passed through a QUERY_STRING like val_1, val_2, val_3, val_4, etc. -- they're radio's, not checkboxes. If I'm in a for loop, how can I construct it so that I can tell PHP to do something to the variable $var_$x where x is an int. I tried eval:

$val = eval("$var_$x;");

but it didn't work. I think eval is the key but I'm not sure. Any ideas?

Thanks,

Mike

[Anon]

Use variable variables:

for ($i=0; $i<=10; $i++) {
$varn = "val_".$i;
if (isset($$varn) && !empty($$varn)) {
//do something;
}
}

BTW, you should not name radio buttons that are in the same group differently. As for checkboxes, using an array name would be better (e.g. NAME="var[]")

HTH

[Anon]

else try

for($i=0;$i<10;$i++)
echo ${"yr_var".$i}