bp_invites_member_invite_register_screen_message()

function bp_invites_member_invite_register_screen_message() {
	global $bp;

	if ( ! bp_invites_member_invite_invitation_page() ) {
		return;
	}

	if ( isset( $_GET['email'] ) ) {
		$email = urldecode( $_GET['email'] );
	} else {
		$email = '';
	}

	?>
	<?php if ( empty( $email ) ) : ?>
		<div id="message" class="error"><p><?php _e( "It looks like you're trying to accept an invitation to join the site, but some information is missing. Please try again by clicking on the link in the invitation email.", 'buddyboss' ) ?></p></div>
	<?php endif; ?>

	<?php if ( $bp->signup->step == 'request-details' && ! empty( $email ) ) : ?>

		<?php do_action( 'accept_email_invite_before' ) ?>

		<script>
			jQuery(document).ready( function() {
				jQuery("input#signup_email").val("<?php echo esc_js( str_replace( ' ', '+', $email ) ) ?>");
			});
		</script>


		<?php
		$bp_get_invitee_email = bp_invites_member_invite_get_invitations_by_invited_email( $email );

		$inviters = array();
		if ( $bp_get_invitee_email->have_posts() ) {
			while ( $bp_get_invitee_email->have_posts() ) {
				$bp_get_invitee_email->the_post();
				$inviters[] = get_the_author_meta( 'ID' );
			}
		}
		$inviters = array_unique( $inviters );

		$inviters_names = array();
		foreach ( $inviters as $inviter ) {
			$inviters_names[] = bp_core_get_user_displayname( $inviter );
		}

		if ( ! empty( $inviters_names ) ) {
			$message = sprintf( _n( 'Welcome! You\'ve been invited to join the site by the following user: %s. Please fill out the information below to create your account.', 'Welcome! You\'ve been invited to join the site by the following users: %s. Please fill out the information below to create your account.', count( $inviters_names ), 'buddyboss' ), implode( ', ', $inviters_names ) );
            
            echo '<aside class="bp-feedback bp-messages info"><span class="bp-icon" aria-hidden="true"></span><p>' . esc_html( $message ) . '</p></aside>';
		}

		?>

	<?php endif; ?>
	<?php
}