Unexpected absence of expected warning

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Hi Group,
   The page 167 of book Learning PHP5 by David Sklar  says that
setcookie() and session_start()  must be added before any output.
       I tried to use that functions at last line but no warning!.
         The warning  which i got 1 month back is not issued now.
The following is my PHP program

function Intelli()
        echo"Hello P";

function Bitz()
        echo"Hello MySQL";

$a = 1;
$myFunc = 'Intelli';
$myFunc ='Bitz';



The following is the output i got.
There is no warning

[tdphpadmin@trgbws40 ~/public_html/demo]$ php dynamicfun.php
X-Powered-By: PHP/5.2.0
Set-Cookie: ZDEDebuggerPresent=php,phtml,php3; path=/
Set-Cookie: PHPSESSID=bp1m17rlrgsa5g19tfekidov31; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-
Pragma: no-cache
Set-Cookie: userid=
Content-type: text/html

Hello Pheader

can any one explain why i din get the warning.....

Re: Unexpected absence of expected warning

geevaa wrote:
Quoted text here. Click to load it


one possibility could be activated output buffering. Check the setting  
of output_buffering in current settings.
Hint <http://de.php.net/manual/en/ref.outcontrol.php


Re: Unexpected absence of expected warning

Quoted text here. Click to load it

When I run the code I get the warning.  Check that you have
display_errors enabled and error_reporting set appropriately in

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