gethostbyname

    (PHP 4, PHP 5, PHP 7, PHP 8)

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

    Description

    gethostbyname(string $hostname): string

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

    Parameters

    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() example

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

    echo     $ip;
    ?>

    See Also

    • gethostbyaddr() - Get the Internet host name corresponding to a given IP address
    • gethostbynamel() - Get a list of IPv4 addresses corresponding to a given Internet host name
    • inet_pton() - Converts a human readable IP address to its packed in_addr representation
    • inet_ntop() - Converts a packed internet address to a human readable representation

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