if ( ! current_user_can( 'import' ) ) {

	wp_die( __( 'Sorry, you are not allowed to import content.' ) );

}

	'<p>' . __('<a href="https://codex.wordpress.org/Tools_Import_Screen">Documentation on Import</a>') . '</p>' .

	'<p>' . __('<a href="https://wordpress.org/support/">Support Forums</a>') . '</p>'

if ( current_user_can( 'install_plugins' ) ) {

	// List of popular importer plugins from the WordPress.org API.

} else {

 	$popular_importers = array();

}

wp_enqueue_script( 'updates' );

<h1><?php echo esc_html( $title ); ?></h1>

	<div class="error">

		<p><strong><?php _e( 'ERROR:' ); ?></strong> <?php

			/* translators: %s: importer slug */

			printf( __( 'The %s importer is invalid or is not installed.' ), '<strong>' . esc_html( $_GET['invalid'] ) . '</strong>' );

		?></p>

	</div>

// Registered (already installed) importers. They're stored in the global $wp_importers.

	// Fill the array of registered (already installed) importers with data of the popular importers from the WordPress.org API.

	<?php

	foreach ( $importers as $importer_id => $data ) {

		$plugin_slug = $action = '';

		$is_plugin_installed = false;

				// Looks like an importer is installed, but not active.

				if ( ! empty( $plugins ) ) {

					$keys = array_keys( $plugins );

					$url = wp_nonce_url( add_query_arg( array(

						'action' => 'activate',

						'plugin' => $plugin_file,

						'from'   => 'import',

					), admin_url( 'plugins.php' ) ), 'activate-plugin_' . $plugin_file );

					$action = sprintf(

						'<a href="%s" aria-label="%s">%s</a>',

						esc_url( $url ),

						/* translators: %s: Importer name */

						esc_attr( sprintf( __( 'Run %s' ), $data[0] ) ),

						__( 'Run Importer' )

					);

					$is_plugin_installed = true;

			if ( empty( $action ) ) {

					$url = wp_nonce_url( add_query_arg( array(

						'action' => 'install-plugin',

						'plugin' => $plugin_slug,

						'from'   => 'import',

					), self_admin_url( 'update.php' ) ), 'install-plugin_' . $plugin_slug );

					$action = sprintf(

						'<a href="%1$s" class="install-now" data-slug="%2$s" data-name="%3$s" aria-label="%4$s">%5$s</a>',

						esc_url( $url ),

						esc_attr( $plugin_slug ),

						esc_attr( $data[0] ),

						/* translators: %s: Importer name */

						esc_attr( sprintf( __( 'Install %s' ), $data[0] ) ),

						__( 'Install Now' )

					);

					$action = sprintf(

						/* translators: URL to wp-admin/import.php */

						__( 'This importer is not installed. Please install importers from <a href="%s">the main site</a>.' ),

						get_admin_url( get_current_network_id(), 'import.php' )

					);

			$url = add_query_arg( array(

				'import' => $importer_id,

			), self_admin_url( 'admin.php' ) );

			$action = sprintf(

				'<a href="%1$s" aria-label="%2$s">%3$s</a>',

				esc_url( $url ),

				/* translators: %s: Importer name */

				esc_attr( sprintf( __( 'Run %s' ), $data[0] ) ),

				__( 'Run Importer' )

			);

			$is_plugin_installed = true;

		}

		if ( ! $is_plugin_installed && is_main_site() ) {

			$url = add_query_arg( array(

				'tab'       => 'plugin-information',

				'plugin'    => $plugin_slug,

				'from'      => 'import',

				'TB_iframe' => 'true',

				'width'     => 600,

				'height'    => 550,

			), network_admin_url( 'plugin-install.php' ) );

			$action .= sprintf(

				' | <a href="%1$s" class="thickbox open-plugin-details-modal" aria-label="%2$s">%3$s</a>',

				esc_url( $url ),

				/* translators: %s: Importer name */

				esc_attr( sprintf( __( 'More information about %s' ), $data[0] ) ),

				__( 'Details' )

			);

			<tr class='importer-item'>

				<td class='import-system'>

					<span class='importer-title'>{$data[0]}</span>

					<span class='importer-action'>{$action}</span>

				</td>

				<td class='desc'>

					<span class='importer-desc'>{$data[1]}</span>

				</td>

	?>

wp_print_request_filesystem_credentials_modal();

wp_print_admin_notice_templates();