Network 函数
PHP Manual

gethostbyname

(PHP 4, PHP 5)

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

说明

string gethostbyname ( string $hostname )

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

参数

hostname

The host name.

返回值

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

范例

Example #1 A simple gethostbyname() example

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

echo 
$ip;
?>

参见


Network 函数
PHP Manual