FILTER_VALIDATE_IP 过滤器把值作为 IP 进行验证。
可能的标志:
</>code
- <?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:
</>code
- IP is valid
</>code
- <?php
- $ip = "2001:0db8:85a3:08d3:1319:8a2e:0370:7334";
- if(!filter_var($ip,
FILTER_VALIDATE_IP
, FILTER_FLAG_IPV6))- {
- echo "IP is not valid";
- }
- else
- {
- echo "IP is valid";
- }
- ?>
输出:
</>code
- IP is valid
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