Reputation: 577
I want to check my variable $id is equal 497 or equal 200 , if $id not equal 497 or $id not equal 200 then mail, but when i run the example as below, I set $id =497 by hand , but run the code ,it's print "not equal\n";
my $id = 497;
if($id != 497 || $id != 200)
{
print "not equal\n";
}
else
{
print "equal , not to mail\n";
}
Upvotes: 0
Views: 105
Reputation: 98388
It says not equal because $id != 200
is true. ||
returns true if either operand is true.
You want to say:
if ($id != 497 && $id != 200)
so not equal is printed only when $id is neither 497 or 200.
Upvotes: 6