I've a question about using <?= "example" ?>, but my problem is that I have no short tags enabled in the server and the webmaster is not going to change it. I tried <?php= "example" ?> but I get an error of unexpected "=". Is it possible to use this notation (<?= ?>) with the short tags disabled?
if short_open_tag is OFF then simply do:
<?php echo 'example'; ?>
Those shortened tags should in general NOT be used anyway, as they cause problems exactly like the one you're experiencing... not all hosts all it, so you can't count on it, so don't use it.
Exactly as superwormy said. The short tags option only remains these days for the benefit of people whose scripts were all written back before the XML standard was published.
try reseting the short tags using ini_set()