PHP 8.1.0 Released!


(PHP 7 >= 7.2.0, PHP 8)

socket_addrinfo_lookupGet array with contents of getaddrinfo about the given hostname


socket_addrinfo_lookup(string $host, ?string $service = null, array $hints = []): array|false

Lookup different ways we can connect to host. The returned array contains a set of AddressInfo instances that we can bind to using socket_addrinfo_bind().



Hostname to search.


The service to connect to. If service is a name, it is translated to the corresponding port number.


Hints provide criteria for selecting addresses returned. You may specify the hints as defined by getadrinfo.

Return Values

Returns an array of AddressInfo instances that can be used with the other socket_addrinfo functions. On failure, false is returned.


Version Description
8.0.0 On success, this function returns a array of AddressInfo instances now; previously, an array of resources was returned.
8.0.0 service is nullable now.

See Also

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top