How to prohibit access to a certain IP or IP address range in PHP_PHP Tutorial

How to prohibit access to a certain IP or IP address range in PHP

This article mainly introduces how to prohibit access to a certain IP or IP address range in PHP, involving server variables $_SERVER, The operation skills of files and strings have certain reference value. Friends in need can refer to it

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:

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That’s it

Disable a single IP as follows:

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//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!"; ?>

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BEGIN: 119.184.251.245 127.0.0.1 192.168.1.100

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//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!"; ?>

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//Disable ip address

$ip=$_SERVER["REMOTE_ADDR"];

$ban=file_get_contents("ban.dat"); if(stripos($ban,$ip)) { die("Your IP Address is:$ip,you're forbidden to view this page!"); } echo "Your IP Address is:$ip,hello!"; ?>

ban.dat file is as follows: ?

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BEGIN: 119.184.251.245 127.0.0.1 192.168.1.100

The disabled IP segments are as follows: ?

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<🎜>//Disable ip address<🎜> <🎜>$ip=$_SERVER["REMOTE_ADDR"];<🎜> <🎜>while($ip[count($ip-1)]!='.')$ip=substr($ip,1, -1); //sort out the ip segments<🎜> <🎜>$ban=file_get_contents("ban.dat");<🎜> <🎜>if(stripos($ban,$ip))<🎜> <🎜>{<🎜> <🎜>die("U're forbidden to view this page!");<🎜> <🎜>}<🎜> <🎜>echo "Hello!";<🎜> <🎜>?>

I hope this article will be helpful to everyone’s PHP programming design. http://www.bkjia.com/PHPjc/960575.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/960575.htmlTechArticleHow to ban access to a certain IP or IP address range in PHP. This article mainly introduces how to ban access to a certain IP or IP address in PHP. Segment access method, involving server variable $_SERVER, file and string operation skills...