Php/docs/function.tcpwrap-check
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tcpwrap_check
(PECL tcpwrap >= 0.1.0)
tcpwrap_check — Performs a tcpwrap check
说明
tcpwrap_check
( string $daemon
, string $address
[, string $user
[, bool $nodns = false
]] ) : bool
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.
参数
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
addresslooks like domain name then DNS is used to resolve it to IP address; setnodnstotrueto avoid this.
返回值
This function returns true if access should be granted, false otherwise.
范例
Example #1 Deny all connections from localhost
If your /etc/hosts.deny file contains:
php: 127.0.0.1
And your code looks like:
<?phpif (!tcpwrap_check('php', $_SERVER['REMOTE_ADDR'])) { die('You are not welcome here');}?>
参见
For more details please consult hosts_access(3) man page.
