PHP 验证IP地址
示例
验证值是有效的IP地址
var_dump(filter_var('185.158.24.24', FILTER_VALIDATE_IP));var_dump(filter_var('2001:0db8:0a0b:12f0:0000:0000:0000:0001', FILTER_VALIDATE_IP));
var_dump(filter_var('192.168.0.1', FILTER_VALIDATE_IP));
var_dump(filter_var('127.0.0.1', FILTER_VALIDATE_IP));
结果:
string(13) "185.158.24.24"string(39) "2001:0db8:0a0b:12f0:0000:0000:0000:0001"
string(11) "192.168.0.1"
string(9) "127.0.0.1"
验证有效的IPv4 IP地址:
var_dump(filter_var('185.158.24.24', FILTER_VALIDATE_IP, FILTER_FLAG_IPV4));var_dump(filter_var('2001:0db8:0a0b:12f0:0000:0000:0000:0001', FILTER_VALIDATE_IP, FILTER_FLAG_IPV4));
var_dump(filter_var('192.168.0.1', FILTER_VALIDATE_IP, FILTER_FLAG_IPV4));
var_dump(filter_var('127.0.0.1', FILTER_VALIDATE_IP, FILTER_FLAG_IPV4));
结果:
string(13) "185.158.24.24"bool(false)
string(11) "192.168.0.1"
string(9) "127.0.0.1"
验证有效的IPv6 IP地址:
var_dump(filter_var('185.158.24.24', FILTER_VALIDATE_IP, FILTER_FLAG_IPV6));var_dump(filter_var('2001:0db8:0a0b:12f0:0000:0000:0000:0001', FILTER_VALIDATE_IP, FILTER_FLAG_IPV6));
var_dump(filter_var('192.168.0.1', FILTER_VALIDATE_IP, FILTER_FLAG_IPV6));
var_dump(filter_var('127.0.0.1', FILTER_VALIDATE_IP, FILTER_FLAG_IPV6));
结果:
bool(false)string(39) "2001:0db8:0a0b:12f0:0000:0000:0000:0001"
bool(false)
bool(false)
验证IP地址不在私有范围内:
var_dump(filter_var('185.158.24.24', FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE));var_dump(filter_var('2001:0db8:0a0b:12f0:0000:0000:0000:0001', FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE));
var_dump(filter_var('192.168.0.1', FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE));
var_dump(filter_var('127.0.0.1', FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE));
结果:
string(13) "185.158.24.24"string(39) "2001:0db8:0a0b:12f0:0000:0000:0000:0001"
bool(false)
string(9) "127.0.0.1"
验证IP地址不在保留范围内:
var_dump(filter_var('185.158.24.24', FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE));var_dump(filter_var('2001:0db8:0a0b:12f0:0000:0000:0000:0001', FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE));
var_dump(filter_var('192.168.0.1', FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE));
var_dump(filter_var('127.0.0.1', FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE));
结果:
string(13) "185.158.24.24"bool(false)
string(11) "192.168.0.1"
bool(false)
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