wp_dashboard_plugins_output

wp_dashboard_plugins_output：这个钩子用于修改WordPress中“插件”仪表盘小工具的输出。开发人员可以使用这个钩子来定制“插件”小工具的外观或为小工具添加附加功能。

显示WordPress新闻小工具的插件文本。

function wp_dashboard_plugins_output( $rss, $args = array() ) {
	_deprecated_function( __FUNCTION__, '4.8.0' );

	// Plugin feeds plus link to install them.
	$popular = fetch_feed( $args['url']['popular'] );

	if ( false === $plugin_slugs = get_transient( 'plugin_slugs' ) ) {
		$plugin_slugs = array_keys( get_plugins() );
		set_transient( 'plugin_slugs', $plugin_slugs, DAY_IN_SECONDS );
	}

	echo '<ul>';

	foreach ( array( $popular ) as $feed ) {
		if ( is_wp_error( $feed ) || ! $feed->get_item_quantity() )
			continue;

		$items = $feed->get_items(0, 5);

		// Pick a random, non-installed plugin.
		while ( true ) {
			// Abort this foreach loop iteration if there's no plugins left of this type.
			if ( 0 === count($items) )
				continue 2;

			$item_key = array_rand($items);
			$item = $items[$item_key];

			list($link, $frag) = explode( '#', $item->get_link() );

			$link = esc_url($link);
			if ( preg_match( '|/([^/]+?)/?$|', $link, $matches ) )
				$slug = $matches[1];
			else {
				unset( $items[$item_key] );
				continue;
			}

			// Is this random plugin's slug already installed? If so, try again.
			reset( $plugin_slugs );
			foreach ( $plugin_slugs as $plugin_slug ) {
				if ( $slug == substr( $plugin_slug, 0, strlen( $slug ) ) ) {
					unset( $items[$item_key] );
					continue 2;
				}
			}

			// If we get to this point, then the random plugin isn't installed and we can stop the while().
			break;
		}

		// Eliminate some common badly formed plugin descriptions.
		while ( ( null !== $item_key = array_rand($items) ) && false !== strpos( $items[$item_key]->get_description(), 'Plugin Name:' ) )
			unset($items[$item_key]);

		if ( !isset($items[$item_key]) )
			continue;

		$raw_title = $item->get_title();

		$ilink = wp_nonce_url('plugin-install.php?tab=plugin-information&plugin=' . $slug, 'install-plugin_' . $slug) . '&amp;TB_iframe=true&amp;width=600&amp;height=800';
		echo '<li class="dashboard-news-plugin"><span>' . __( 'Popular Plugin' ) . ':</span> ' . esc_html( $raw_title ) .
			'&nbsp;<a href="' . $ilink . '" class="thickbox open-plugin-details-modal" aria-label="' .
			/* translators: %s: Plugin name. */
			esc_attr( sprintf( _x( 'Install %s', 'plugin' ), $raw_title ) ) . '">(' . __( 'Install' ) . ')</a></li>';

		$feed->__destruct();
		unset( $feed );
	}

	echo '</ul>';
}