How to execute php in string?

[eluser]rogierb[/eluser]
Well, I think finally found it.

Code:

$string = "I am an <?php echo 'idiot'; ?>";

echo eval ($string);

did not work.

But after some random typing and testing (with forehead ramming keyboard)

Code:

$string = "I am an <?php echo 'not that big an idiot'; ?>";

echo eval ("?>".$string);

Did the trick.

Thanx y'all!