gethostbynamel
may help you with <5.3 :
php_uname('n');
gethostname
(PHP >= 5.3.0)
gethostname — Gets the host name
Description
string gethostname
( void
)
gethostname() gets the standard host name for the local machine.
Return Values
Returns a string with the hostname on success, otherwise FALSE is returned.
Examples
Example #1 A simple gethostname() example
<?php
echo gethostname(); // may output e.g,: sandie
?>
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