INET_ATON
SinceVersion dev
inet_aton
description
Syntax
BIGINT INET_ATON(VARCHAR ipv4_string)
获取包含 IPv4 地址的字符串,格式为 A.B.C.D(点分隔的十进制数字)。返回一个 BIGINT 数字,表示相应的大端 IPv4 地址。
notice
该函数为ipv4_string_to_num_or_null的别称。如果输入字符串不是有效的 IPv4 地址或者NULL,将返回NULL,和MySQL一样
example
mysql> select inet_aton('192.168.0.1');
+-------------------------------------------+
| ipv4_string_to_num_or_null('192.168.0.1') |
+-------------------------------------------+
| 3232235521 |
+-------------------------------------------+
1 row in set (0.01 sec)
mysql> SELECT inet_aton('192.168');
+---------------------------------------+
| ipv4_string_to_num_or_null('192.168') |
+---------------------------------------+
| NULL |
+---------------------------------------+
1 row in set (0.01 sec)
keywords
INET_ATON, IP