Why is this PHP comparison failing?
<p>I'm trying to compare a defined code against a set of blocked country codes.  In the following example the country code is getting caught in my if block:</p>

<pre><code>$country_code = 'US';

if ($country_code == ("NG" || "RO" || "VN" || "GH" || "SN" || "TN" || "IN" || "ID" || "KE" || "CN" || "CI" || "ZA" || "DZ" || "RU")) {
    print "COUNTRY CODE: $country_code&lt;br&gt;";
}
</code></pre>

<p>I see this for my results"</p>

<pre><code>COUNTRY CODE: US
</code></pre>

<p>I wouldn't expect 'US' to get caught...what am I missing?</p>
