php FILTER_VALIDATE_IP_PHP tutorial

The filter verifies the IP address to see if it is legal.

Definition and usage
This filter validates the FILTER_VALIDATE_IP value as a URL.

Name: "validate_ip"
ID number: 275
Possible flags:

<?php
$ip = "192.168.0.1";

if(!filter_var($ip, FILTER_VALIDATE_IP))
 {
 echo "IP is not valid";
 }
else
 {
 echo "IP is valid";
 }
?>

输出结果。

is is valid

http://www.bkjia.com/PHPjc/630488.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/630488.htmlTechArticleThe filter verifies whether the IP address is legal. Definition and Usage This filter validates the FILTER_VALIDATE_IP value as a URL. Name: validate_ip ID number: 275 Possible flags: ...