textdomain
(PHP 4, PHP 5, PHP 7)
textdomain — Sets the default domain
Description
textdomain ( string|null $domain ) : string
This function sets the domain to search within when calls are made to gettext(), usually the named after an application.
Parameters
-  domain
-  The new message domain, or nullto get the current setting without changing it
Return Values
If successful, this function returns the current message domain, after possibly changing it.
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Licensed under the Creative Commons Attribution License v3.0 or later.
    https://www.php.net/manual/en/function.textdomain.php