Filters the subject of the new blog notification email.

Parameters

$subjectstring

Subject of the notification email.

$domainstring

Site domain.

$pathstring

Site path.

$titlestring

Site title.

$user_loginstring

User login name.

$user_emailstring

User email address.

$keystring

Activation key created in wpmu_signup_blog() .

$metaarray

Signup meta data. By default, contains the requested privacy setting and lang_id.

Source

apply_filters(
	'wpmu_signup_blog_notification_subject',
	/* translators: New site notification email subject. 1: Network title, 2: New site URL. */
	_x( '[%1$s] Activate %2$s', 'New site notification email subject' ),
	$domain,
	$path,
	$title,
	$user_login,
	$user_email,
	$key,
	$meta
),

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