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XPM3_FUNC :: <i>boolean</i> <b>is_hostname</b> ( <i>string</i> hostname [, <i>boolean</i> have_address ] )
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Returns TRUE if is public hostname format, FALSE if not.

<i>boolean</i> have_address default value is: false

<i>Notice</i>: "localhost" it is not a public domain.

Example:
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// test if "mail.test.net" is hostane format and have IP address
echo XPM3_FUNC::is_hostname('mail.test.net', true) ? 'True' : 'False';
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Last update: Tuesday, January 16, 2007

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