In my template file, i have written the code like below 

 [% IF cnt > 0 %]
                        <tr><td colspan="2">   <h3 align="center">Have
+ you verified the Checklist ?</h3></td></tr>

                   [%- SET i = 0;
                        WHILE i < checklists.size; -%]

                        <tr>
                                <td> <input type="checkbox" name="chec
+k_[% check_id.$i %]" value="1"/> </td>
                                <td> [% checklists.$i %] </td>
                        </tr>

                [%-     SET i = i + 1;
                        END -%]

[download]

And i want to take the name of the checklist in the cgi page, so that the value can be inserted into the database.since the name of the checklist has been given inside the array, i can't take that individually, so inthe cgi page, i have used the code like this :

if( $user->id){
my $usr = $user->id;
my @userchecklist_id;
my $check_ = "chck";
my $chck_ = "check";
my $quer = "SELECT checklist.id FROM group_management,User_group_manag
+ement_mapping,profiles,checklist,checklist_group_mapping WHERE User_g
+roup_management_mapping.userid = $usr and  profiles.userid = User_gro
+up_management_mapping.userid and group_management.id =User_group_mana
+gement_mapping.groupid and checklist_group_mapping.checklist_id = che
+cklist.id and checklist_group_mapping.group_id = group_management.id"
+;
my $query = $dbh -> prepare($quer);
$query-> execute();
while(my($usrcheck_id) = $query->fetchrow_array())
{
        push (@userchecklist_id,$usrcheck_id);
}
foreach $usr( @userchecklist_id) {
#print $usr . "\n";
#print $check_.$usr;
my $check_.$usr = $cgi->param("$chck_.$usr");
print $chck_.$usr;
}
}

[download]
It is showing the error in the line my $check_.$usr = $cgi->param("$chck_.$usr");

only if i can take the name of the checkbox, i can insert the value into the database. How can i achieve this.??

Note : @userchecklist_id contains values same as that % check_id.$i %, used in the template file.

In reply to showing the error ,Can't modify concatenation (.) or string in scalar assignment by gayu_justin

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