function call before declaration

Hi! I got a problem with functions which I call before they're defined. I get the error message: Fatal error: Call to undefined function: view() in /daten/www/midgard/cache/62.php on line 470 The code snippet: ----------------8<----------------- switch($argv[0]) { case 'view': view((int)$argv[1]); break; default: view(); break; } // ---------------------------------------------------- function view($mgd_eid = 0) { global $self, $eventtypes; if($mgd_eid) { if(!$event = mgd_get_event($mgd_eid)) die("Ungültige Event-ID"); $start = date(" ... ----------------8<----------------- It worked before (Suse 7.2 php 4.2.0) and now it won't (Debian Woody php 4.1.2) I reckon it should work since php4. Perhaps a misconfiguration? The functions are not conditionally defined! Any Ideas? Thanks in advance! M. Hochstraßer