PHP gethostbyname() function usage and example

PHP HTTP 　reference manual

The gethostbyname() function returns the IPv4 address corresponding to the hostname.

Syntax

string gethostbyname ( string $hostname )

Definition and usage

　Returns the IPv4 internet address corresponding to the hostname hostname.

Return value

　Returns the IPv4 address when successful, and returns the hostname string unchanged when failed.

Parameter

Example

Try the following example

<?php
$ip　=　gethostbyname('ru.oldtoolbag.com');
echo　$ip;
echo　$hostname;
?>

The above example shows the result of the w3codebox IPV4 address.

PHP HTTP 　reference manual