Hi,

The Code 

foreach $FD_NAME ( 1 .. 10) {

        if( $FD_NAME eq $CATEGORY_DATA{$FD_NAME}{'FIELD_NAME'}) { # Th
+e if causing prob
           
           #Do my stuff
           
       }
       
} 

print keys %CATEGORY_DATA;

[download]
The problem.
In the above code, the hash %CATEGORY_DATA is a HOH and has some values. Let us say the %CATEGORY_DATA is as follows. 
%CATEGORY_DATA = (
    1 => ( FIELD_NAME => 'id' ),
    4 => ( FIELD_NAME => 'name' ),
);

[download]
In the "if" if I check for keys 1 & 2 everything is Ok. But when $FD_NAME is 3 ( Or any value which is NOT a key in the hash ) it creates an element in the hash. i.e when I get keys of %CATEGORY_DATA, I am getting all the numbers 1 to 10 :( Is there a way to get only keys which has some values?

Cheers !

--VC

My Home

In reply to Automatic creation of hash elements by atemon

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