How to ban ip access in php

php method to ban ip access: first create a PHP sample file; then pass "if(stripos($ban,$ip)){die("Your IP Address is:$ip,you're forbiden to...")}" method can prohibit ip access.

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php bans a certain ip or ip address The method of segment access

<?php include("banIP.php");?>

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&#39;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

Disable an ip segment as follows:

<?php 
//禁用ip地址 
$ip=$_SERVER["REMOTE_ADDR"]; 
while($ip[count($ip-1)]!=&#39;.&#39;)$ip=substr($ip,1, -1); //整理出ip段 
$ban=file_get_contents("ban.dat"); 
if(stripos($ban,$ip)) 
{ 
 die("U&#39;re forbiden to view this page!"); 
} 
echo "Hello!"; 
?>

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