Hello There are two arrays that have strings. How can i compare them and get as result the number of strings that occur in both? Also, if for example there are two strings in one array the same and the same string is in the other array i only want 1 to be added. SO, unless there are two of the same string in each array (and add 2) then don't bother with the second one.

I have written some code but it doesn't work. Not sure why: 

 

@array1 = ("fg", "dg", "tu","ph", "dgs",);
@array2 = ("dgs","sfd","dg","ph","rhd");


if (scalar(@array1) >= scalar(@array2)) {
    @bigger_array = @array1;
    @smaller_array = @array2;
    }
else {
    @bigger_array = @array2;
    @smaller_array = @array1;    
}

$value = 0;
foreach $word (@bigger_array) {
    for (my $i = 0; $i <= scalar(@smaller_array); $i++) {
        if($word eq $array1[$i]) {            
            splice(@smaller_array,$i, 1);
            $i--;
            $value++;
        }
    }            
}    

print $value;

[download]

Does anyone know why? Thanks

In reply to Comparing arrays and returning number of similar elements by Anonymous Monk

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