Hi There,
Well it seems that PHP3 doesn't like variables or indirect variables which are numeric.
Unfortunately, This was a feature in PHP/FI 2.0.1 that I used extensively.
(It was handy for while loops)

<?
  $test = 1;
  $1 = "testing";
  echo $$test;
?>

This spits out the result of: Parse error: parse error, expecting `STRING' or `'{'' or `'$'' in /home/httpd/html/rocky/puritytest.php3 on
line 3

It gives me an Illegal variable if I would use $$test in an if statement as:

<? if ($$test == "testing") {
     echo ("TRUE");
   }
?>

All this stuff works in PHP/FI 2.0.1 (with PHP/FI syntax of course)