PHP code to check if local server

This article introduces a piece of PHP code used to detect whether it is a local server. It is very simple and can be used as a reference for beginners.

Check whether it is a local server and take next steps. code show as below:

<?php
/**
* 检测服务器属性
* edit bbs.it-home.org
*/

function is_localhost() {
 $localhost_ids = array('localhost', '127.0.0.1');
 if(in_array($_SERVER['HTTP_HOST'],$localhost_ids)){
    // not valid
    return 1;
 }
 }
?>

Code description: Obtain the server information through $_SERVER['HTTP_HOST'], and then match the setting value of the database to know whether it is a local server.