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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 663 | |
| 664 | // Send email with activation link. |
| 665 | $admin_email = get_site_option( 'admin_email' ); |
| 666 | if ( $admin_email == '' ) |
| 667 | $admin_email = 'support@' . $_SERVER['SERVER_NAME']; |
| 668 | $from_name = get_site_option( 'site_name' ) == '' ? 'WordPress' : esc_html( get_site_option( 'site_name' ) ); |
| 669 | $message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n"; |
| 670 | $message = sprintf( apply_filters( 'wpmu_signup_user_notification_email', __( "To activate your user, please click the following link:\n\n%s\n\nAfter you activate, you will receive *another email* with your login.\n\n" ) ), site_url( "wp-activate.php?key=$key" ), $key ); |
| 671 | // TODO: Don't hard code activation link. |
| 672 | $subject = sprintf( __( apply_filters( 'wpmu_signup_user_notification_subject', '[%1s] Activate %2s' ) ), $from_name, $user); |
| 673 | wp_mail($user_email, $subject, $message, $message_headers); |
| 674 | return true; |
| 675 | } |
| 676 | |
| 677 | function wpmu_activate_signup($key) { |
| 678 | global $wpdb, $current_site; |
| 679 | |
| 680 | $signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE activation_key = %s", $key) ); |
| 681 | |