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(PECL tcpwrap >= 0.1.0)
tcpwrap_check — Performs a tcpwrap check
$daemon
, string $address
[, string $user
[, bool $nodns
= false
]] )
This function consults the /etc/hosts.allow and
/etc/hosts.deny files to check if access to service
daemon
should be granted or denied for a client.
daemon
The service name.
address
The client remote address. Can be either an IP address or a domain name.
user
An optional user name.
nodns
If address
looks like domain name then DNS is
used to resolve it to IP address; set nodns
to
TRUE
to avoid this.
This function returns TRUE
if access should be granted, FALSE
otherwise.
Example #1 Deny all connections from localhost
If your /etc/hosts.deny file contains:
php: 127.0.0.1
And your code looks like:
<?php
if (! tcpwrap_check ( 'php' , $_SERVER [ 'REMOTE_ADDR' ])) {
die( 'You are not welcome here' );
}
?>
For more details please consult hosts_access(3) man page.