[Br@nkoR]

npr.

<?php

$text = 'bla bla bla 
[kod] 
<?php 
$v = \'bla\';
echo $v;
?>
 [/kod]

 bla bla';

$pattern = "|\[kod\](.*?)\[/kod\]|s";

echo preg_replace_callback($pattern, create_function('$m', 'return highlight_string($m[1], true);'), $text);

?>