perl problem

i have a array which elements contain strings like so...


<USERID>~<USERNAME>~<ADDRESS>~<TELEPHONE>~<MOBILE>~<SALARY>~<PRSINO>~<DOB>

what i have is a web form that asks a user to put in their <USERID> and if the <USERID> entered is contained in a line in this array, then i want to run some SQL query.

my $userID = $page->param(userID);
chomp $userID;


print "enter userID:<br/>";
print "<form action=\"user.cgi\" method=\"get\">
        userID: <input type=\"\text" name=\"adduserID\" id=\"adduserID\"/>
        <input type=\"submit\" />
        </form>";


@info  # contains the lines delimited by ~

# variables to be used to store the values of the delimited string
my $userID;
my $userName;
my $address;
my $telephone;
my $mobile ; 
my $salary;
my $prsino;
my $dob;


foreach my $line (@info)
{
    if( $line =~ /(.+)~(.+)~(.+)~(.+)~(.+)~(.+)~(.+)~(.+)/ )
    {
        $userID = $1;
        $username = $2;
        $address = $3;
        $telephone = $4;
        $mobile = $5;
        $salary = $6;
        $prsino = $7;
        $dob = $8;
    }

    #before i check to see if the ID's are equal i print them out to see if they are equal.
    print "adduserID: $adduserID // userID: $userID";
    
    #so down here i want to check each $userID from each line against the userID entered by the user from the form.
    if($adduserID eq $userID)
    {
        print "the user has been found";
    }
    else
    {
        print "user not found";
    }
}

when "print "adduserID: $adduserID // userID: $userID";" prints to the screen i'll get output like this.

adduserID: ABCxx12345 userID: ABCxx54321
adduserID: ABCxx12345 userID: ABCxx54322
adduserID: ABCxx12345 userID: ABCxx54323
adduserID: ABCxx12345 userID: ABCxx54324
adduserID: ABCxx12345 userID: ABCxx54324
adduserID: ABCxx12345 userID: ABCxx12345

as you can see the ID's match on the last line so the message "the user has been found" should be printed, instead i get the else statement executed.

the match will only occur if i input a number in the form that is the first match eg. i input ABCxx54321. in that case the print out looks like this:

adduserID: ABCxx54321 userID: ABCxx54321

how come this doesn't match on any line bar the first one?

i changed the actual variables of my program just so the above is an example the above is not actually what my program is going to do.