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# gethostbyname

(PHP 3, PHP 4, PHP 5)

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

## 说明

string gethostbyname ( string hostname )

Returns the IP address of the Internet host specified by `hostname` or a string containing the unmodified `hostname` on failure.

例 1. A simple gethostbyname() example

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

## 参见

gethostbyaddr()
gethostbynamel()

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