Php implements the checkdnsrr function of the window platform _ PHP Tutorial

Php implements the checkdnsrr function of the window platform. Php implements the checkdnsrr function of the window platform. This article mainly introduces php implements the checkdnsrr function of the window platform. the built-in checkdnsrr function of PHP is only valid on the linux platform, this article simulates php to implement the checkdnsrr function of the window platform.

This article mainly introduces how php implements the checkdnsrr function of the window platform. the built-in checkdnsrr function of PHP is only valid on the linux platform. This article simulates the checkdnsrr function that can be used in a window, for more information, see

PHP's built-in checkdnsrr function is only valid on the linux platform. It makes compatibility troublesome if it is not used on the window platform.

Therefore, a checkdnsrr simulation function is written for use in the Windows platform environment.

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If (! Function_exists ('checkdnsrr ')){ Function checkdnsrr ($ host, $ type ){ If (! Empty ($ host )&&! Empty ($ type )){ @ Exec ('nslookup-type = '. escapeshellarg ($ type).'. escapeshellarg ($ host), $ output ); Foreach ($ output as $ k => $ line ){ If (eregi ('^'. $ host, $ line )){ Return true; } } } Return false; } }

This article describes how to implement the checkdnsrr function of the window platform in php. the built-in checkdnsrr function of PHP is only valid on the linux platform. This article simulates it...