php man page for gethostbyname

GETHOSTBYNAME(3)							 1							  GETHOSTBYNAME(3)

gethostbyname - Get the IPv4 address corresponding to a given Internet host name

SYNOPSIS
       string gethostbyname (string  $hostname)

DESCRIPTION
	Returns the IPv4 address of the Internet host specified by $hostname.

PARAMETERS
	      o $hostname
		- The host name.

RETURN VALUES
	Returns the IPv4 address or a string containing the unmodified $hostname on failure.

EXAMPLES
       Example #1

	      A simple gethostbyname(3) example

	      <?php
	      $ip = gethostbyname('www.example.com');

	      echo $ip;
	      ?>

SEE ALSO
       gethostbyaddr(3), gethostbynamel(3), inet_pton(3), inet_ntop(3).

PHP Documentation Group 													  GETHOSTBYNAME(3)