show_blog_form( string $blogname = '', string $blog_title = '', WP_Error|string $errors = '' )

function show_blog_form( $blogname = '', $blog_title = '', $errors = '' ) {
	if ( ! is_wp_error( $errors ) ) {
		$errors = new WP_Error();
	}

	$current_network = get_network();
	// Blog name
	if ( !is_subdomain_install() )
		echo '<label for="blogname">' . __('Site Name:') . '</label>';
	else
		echo '<label for="blogname">' . __('Site Domain:') . '</label>';

	if ( $errmsg = $errors->get_error_message('blogname') ) { ?>
		<p class="error"><?php echo $errmsg ?></p>
	<?php }

	if ( !is_subdomain_install() )
		echo '<span class="prefix_address">' . $current_network->domain . $current_network->path . '</span><input name="blogname" type="text" id="blogname" value="'. esc_attr($blogname) .'" maxlength="60" /><br />';
	else
		echo '<input name="blogname" type="text" id="blogname" value="'.esc_attr($blogname).'" maxlength="60" /><span class="suffix_address">.' . ( $site_domain = preg_replace( '|^www\.|', '', $current_network->domain ) ) . '</span><br />';

	if ( ! is_user_logged_in() ) {
		if ( ! is_subdomain_install() ) {
			$site = $current_network->domain . $current_network->path . __( 'sitename' );
		} else {
			$site = __( 'domain' ) . '.' . $site_domain . $current_network->path;
		}

		/* translators: %s: site address */
		echo '<p>(<strong>' . sprintf( __( 'Your address will be %s.' ), $site ) . '</strong>) ' . __( 'Must be at least 4 characters, letters and numbers only. It cannot be changed, so choose carefully!' ) . '</p>';
	}

	// Blog Title
	?>
	<label for="blog_title"><?php _e('Site Title:') ?></label>
	<?php if ( $errmsg = $errors->get_error_message('blog_title') ) { ?>
		<p class="error"><?php echo $errmsg ?></p>
	<?php }
	echo '<input name="blog_title" type="text" id="blog_title" value="'.esc_attr($blog_title).'" />';
	?>

	<?php
	// Site Language.
	$languages = signup_get_available_languages();

	if ( ! empty( $languages ) ) :
		?>
		<p>
			<label for="site-language"><?php _e( 'Site Language:' ); ?></label>
			<?php
			// Network default.
			$lang = get_site_option( 'WPLANG' );

			if ( isset( $_POST['WPLANG'] ) ) {
				$lang = $_POST['WPLANG'];
			}

			// Use US English if the default isn't available.
			if ( ! in_array( $lang, $languages ) ) {
				$lang = '';
			}

			wp_dropdown_languages( array(
				'name'                        => 'WPLANG',
				'id'                          => 'site-language',
				'selected'                    => $lang,
				'languages'                   => $languages,
				'show_available_translations' => false,
			) );
			?>
		</p>
	<?php endif; // Languages. ?>

	<div id="privacy">
        <p class="privacy-intro">
            <label for="blog_public_on"><?php _e('Privacy:') ?></label>
            <?php _e( 'Allow search engines to index this site.' ); ?>
            <br style="clear:both" />
            <label class="checkbox" for="blog_public_on">
                <input type="radio" id="blog_public_on" name="blog_public" value="1" <?php if ( !isset( $_POST['blog_public'] ) || $_POST['blog_public'] == '1' ) { ?>checked="checked"<?php } ?> />
                <strong><?php _e( 'Yes' ); ?></strong>
            </label>
            <label class="checkbox" for="blog_public_off">
                <input type="radio" id="blog_public_off" name="blog_public" value="0" <?php if ( isset( $_POST['blog_public'] ) && $_POST['blog_public'] == '0' ) { ?>checked="checked"<?php } ?> />
                <strong><?php _e( 'No' ); ?></strong>
            </label>
        </p>
	</div>

	<?php
	/**
	 * Fires after the site sign-up form.
	 *
	 * @since WP-3.0.0
	 *
	 * @param WP_Error $errors A WP_Error object possibly containing 'blogname' or 'blog_title' errors.
	 */
	do_action( 'signup_blogform', $errors );
}