I Won a Bet With This
Apparently you can't create variables that start with a number in PHP.
Well I made it happen.
Try it:
$foutytwo = 42;
var_dump($fortytwo);
echo ${$fortytwo} = 'fortytwo';
?>
And just to make sure that you really did create a variable with the name of '42', add this to the end:
print_r(get_defined_vars());
And somewhere near the bottom of the list, you'll see it. 
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