Re^3: Help with uni project: DBI errors in CGI script

If you add the pragma "use strict" to the top of your code, you will see why. You've not declared the @row variable. Therefore, nothing will be printed. You probably meant to have @results there. "use strict" can help you with those kinds of things (as can "use warnings")

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Comment on Re^3: Help with uni project: DBI errors in CGI script

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Re^4: Help with uni project: DBI errors in CGI script by ginda (Initiate) on Mar 16, 2005 at 20:29 UTC
I have added the strict pragma, then ran script and it did mention the two arrays i then declared them and now no errors, now it just doesnt display anything but a blank web page. When i check the source of the page i get <HTML> <BODY> </BODY> </HTML>	[reply]
Re^5: Help with uni project: DBI errors in CGI script by japhy (Canon) on Mar 16, 2005 at 20:47 UTC
You're not listening. You're not PUTTING anything in the @row array, you're only putting things in the @results array. You're printing an EMPTY array. _____________________________________________________ Jeff `japhy` Pinyan, P.L., P.M., P.O.D, X.S.: Perl, regex, and `perl` hacker How can we ever be the sold short or the cheated, we who for every service have long ago been overpaid? ~~ Meister Eckhart	[reply]
Re^4: Help with uni project: DBI errors in CGI script by Anonymous Monk on Mar 16, 2005 at 20:23 UTC
I used strict and it did give me the message regarding them two array variables, i declared them at start of code then ran teh code and now no errors but still not data be displayed in browser?	[reply]
Re^5: Help with uni project: DBI errors in CGI script by nobull (Friar) on Mar 16, 2005 at 20:45 UTC
How are you expecting any content to get into the array @row? There is nothing in your code that puts anything in there. Declaring all your variables at the start of your code is a very self destructive habit. Declare all your variables as lexically scoped in the smallest applicable lexical scope unless you have a positive reason to do otherwise. (Note: this has nothing specifically to do with Perl - it applies in all programming languages). If you followed this advice you would have been much less likely to have made the mistake.	[reply]


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