Problem with Sub-routine calling

Kijori · Jan 31, 2002

a newbie question. i've got two sub-routines i.e, sub1, sub2.

sub1 does some file updating and sub2 does some HTML printing. question... how do you make sub2 run once sub1 has finished?

here's a snippet of my code.

if ($var == $anothervar) {
&sub2;
}
else {
&sub1;
&sub2;
}

when i run this code... after finishing sub1, the browser doesn't output sub2's purpose.

wzrd · Jan 31, 2002

it should. It goes down line by line, waiting for each routine to finish.

Did you check the error log?

wzrd

Haunter · Jan 31, 2002

The syntax you have should produce the desired results. PERL will complete sub1 and the return to the next after where it was called.

You can also call sub2 from within sub one as the last line if you always call them together.

Or you could combine sub1 and sub2 together into a single sub. This all considering you always call them together.

Now if you are not seeing the results of sub2 you may have an error in the code.

Can we look at your code?

tsdragon · Jan 31, 2002

As another alternative, since sub2 is always run, there's no need to put it in both parts of the if condition. Just reverse the if condition, omit the else, and call sub2 afterwards, like this:

Code:

if ($var != $anothervar) { 
   &sub1; 
} 
&sub2;

It's also a little clearer what's going on that way, and might be easier to DEBUG and maintain. Tracy Dryden
tracy@bydisn.com

http://www.bydisn.com

Meddle not in the affairs of dragons,
For you are crunchy, and good with mustard.

Kijori · Feb 1, 2002

thanks guys. i think i know what the problem is. in sub2... this is what i code (snippet only);

print $q->header;

some codes here;

print <<End;
<html><head><title>Blah blah</title></head>
<body>
stuff goes here
</body>
</html>
End

when i removed the <html></html> tag... it worked. can anyone explain why is this so? i just don't get it. i'm only a newbie to CGI.

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Problem with Sub-routine calling

Kijori

Technical User

wzrd

Programmer

Haunter

Programmer

tsdragon

Programmer

Kijori

Technical User

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