textdomain

(PHP 4, PHP 5, PHP 7, PHP 8)

textdomain — Sets the default domain

function textdomain(?string $domain = null): string

This function sets the domain to search within when calls are made to gettext(), usually the named after an application.

domain: The new message domain, or null to get the current setting without changing it

If successful, this function returns the current message domain, after possibly changing it.

Throws a ValueError if domain is the empty string.

Version	Description
8.4.0	Now throws a ValueError if `domain` is the empty string.
8.4.0	`domain` is optional now. Previously, the parameter always had to be specified.

Note:
The textdomain() information is maintained per process, not per thread.