inet_pton()

(PHP 5 >= 5.1.0, PHP 7)

Converts a human readable IP address to its packed in_addr representation

说明

This function converts a human readable IPv4 or IPv6 address (if PHP was built with IPv6 support enabled) into an address family appropriate 32bit or 128bit binary structure.

参数

A human readable IPv4 or IPv6 address.

返回值

Returns thein_addrrepresentation of the given$address,orFALSEif a syntactically invalid$addressis given (for example, an IPv4 address without dots or an IPv6 address without colons).

范例

Example #1inet_pton()Example

更新日志

参见

• ip2long() 将 IPV4 的字符串互联网协议转换成长整型数字
• long2ip() 将长整型转化为字符串形式带点的互联网标准格式地址（IPV4）
• inet_ntop()Converts a packed internet address to a human readable representation

Be careful, address with leading 0 return false.
Example : 

It is possible to verify if PHP was compiled with --disable-ipv6 option by AF_INET6 constant. 

If the input string is not a readable IP address, inet_pton() generates an E_WARNING and returns FALSE. The same is true for inet_ntop().
Also, inet_pton() does not recognize netmask notation (e.g: "1.2.3.4/24" or "1:2::3:4/64") in the input string. This differs from how some database systems (like postgreSQL) support IP address types, so if you need that sort of functionality when processing IP addresses in PHP you'll have to write it in yourself.
A rough example:

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