my @orwhere = map " $_ = '$number' ", @fields;
push @orwhere, map " $_ = '$prefix$number' ", @fields
- if length($prefix);
- if ( $prefix =~ /^\+(\d+)$/ ) {
+ if defined($prefix) && length($prefix);
+ if ( $prefix && $prefix =~ /^\+(\d+)$/ ) {
push @orwhere, map " $_ = '$1$number' ", @fields
}