Home > Article > Backend Development > How to prohibit access to a certain IP or IP address range in php, phpip_PHP tutorial
The example in this article describes the method of prohibiting access to a certain IP or IP address range in PHP. I would like to share it with you for your reference. The specific analysis is as follows:
Because I haven’t studied Apache and nginx in depth yet, I wrote a small program in PHP that can disable addresses
To use just:
<?php include("banIP.php");?>
That’s it
Disable a single IP as follows:
<?php //禁用ip地址 $ip=$_SERVER["REMOTE_ADDR"]; $ban=file_get_contents("ban.dat"); if(stripos($ban,$ip)) { die("Your IP Address is:$ip,you're forbiden to view this page!"); } echo "Your IP Address is:$ip,hello!"; ?>
ban.dat file is as follows:
BEGIN: 119.184.251.245 127.0.0.1 192.168.1.100
The disabled IP segments are as follows:
<?php //禁用ip地址 $ip=$_SERVER["REMOTE_ADDR"]; while($ip[count($ip-1)]!='.')$ip=substr($ip,1, -1); //整理出ip段 $ban=file_get_contents("ban.dat"); if(stripos($ban,$ip)) { die("U're forbiden to view this page!"); } echo "Hello!"; ?>
I hope this article will be helpful to everyone’s PHP programming design.