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    Check DNS records corresponding to a given Internet host name or IP address
    Network Functions
    PHP Manual

    checkdnsrr

    (PHP 4, PHP 5)

    checkdnsrr — Check DNS records corresponding to a given Internet host name or IP address

    Description

    bool checkdnsrr ( string $host [, string $type ] )

    Searches DNS for records of type type corresponding to host .

    Parameters

    host

    host may either be the IP address in dotted-quad notation or the host name.

    type

    type may be any one of: A, MX, NS, SOA, PTR, CNAME, AAAA, A6, SRV, NAPTR, TXT or ANY. The default is MX.

    Return Values

    Returns TRUE if any records are found; returns FALSE if no records were found or if an error occurred.

    ChangeLog

    Version Description
    5.2.4 TXT type was added.
    5.0.0 AAAA type was added.

    Notes

    Note: This function is not implemented on Windows platforms. Try the » PEAR class » Net_DNS.

    See Also

    Network Functions
    PHP Manual

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