Filters the subject of the welcome email sent to the site administrator after site activation.
$subjectstring
$subject = apply_filters( 'update_welcome_subject', sprintf( $subject, $current_network->site_name, wp_unslash( $title ) ) );
| Version | Description |
|---|---|
| MU (3.0.0) | Introduced. |
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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/hooks/update_welcome_subject