PHP5中文手册·Performs a tcpwrap check -- 追寻梦想＞编程乐园＞PHP 编程

说明

bool tcpwrap_check ( string $daemon , string $address [, string $user [, bool $nodns ]] )

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 address looks like domain name then DNS is used to resolve it to IP address; set nodns to TRUE to 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:


<?php
if (!tcpwrap_check('php', $_SERVER['REMOTE_ADDR'])) {
  die('You are not welcome here');
}
?>

参见

For more details please consult hosts_access(3) man page.


	PHP5中文手册 TCP Wrappers tidy TCP Wrappers PHP Manual tcpwrap_check (PECL tcpwrap:0.1-1.0) tcpwrap_check — Performs a tcpwrap check 说明 bool tcpwrap_check ( string `$daemon` , string `$address` [, string `$user` [, bool `$nodns` ]] ) 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 `address` looks like domain name then DNS is used to resolve it to IP address; set `nodns` to `TRUE` to 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: `<?php if (!tcpwrap_check('php', $_SERVER['REMOTE_ADDR'])) { die('You are not welcome here'); } ?>` 参见 For more details please consult hosts_access(3) man page. TCP Wrappers tidy TCP Wrappers PHP Manual