It's only testing whether $q->param('intrests') (sic) doesn't match a vertical bar. For all the other values, it's testing whether they're false (empty string or zero).
This is a pretty awful way to structure an ifbut to get the effect you want you'd have to do:
if ($q->param('name') =~ /\|/
|| $q->param('site') =~ /\|/
|| $q->param('siteid') =~ /\|/
# and so on....
) {
# whatever...
It'd be much nicer to do:
foreach my $p (qw(name site siteid ...))
{
if ($q->param($p) =~ /\|/)
{
error("$p has a vertical bar, that's bad");
# or something
}
}
HTH
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