Merge pull request #3149 from 10up/feature/instant-results-network-no…

…tice

Add a notice for Instant Results in network mode.

includes/classes/Feature/InstantResults/InstantResults.php

@@ -108,9 +108,9 @@ public function output_feature_box_long() {
 			<?php
 			printf(
 				/* translators: %s: ElasticPress.io link. */
-				esc_html__( 'WordPress search forms will display results instantly. When the search query is submitted, a modal will open that populates results by querying ElasticPress directly, bypassing WordPress. As the user refines their search, results are refreshed. Requires an %s to function.', 'elasticpress' ),
+				esc_html__( 'WordPress search forms will display results instantly. When the search query is submitted, a modal will open that populates results by querying ElasticPress directly, bypassing WordPress. As the user refines their search, results are refreshed. Requires an %s or a custom proxy to function.', 'elasticpress' ),
 				sprintf(
-					'<a href=”%1$s” target="_blank">%2$s</a>',
+					'<a href="%1$s" target="_blank">%2$s</a>',
 					'https://www.elasticpress.io/',
 					esc_html__( 'ElasticPress.io plan', 'elasticpress' )
 				)
@@ -218,6 +218,22 @@ public function requirements_status() {
 			$status->message[] = wp_kses_post( __( "To use this feature you need to be an <a href='https://elasticpress.io'>ElasticPress.io</a> customer or implement a <a href='https://github.com/10up/elasticpress-proxy'>custom proxy</a>.", 'elasticpress' ) );
 		}
 
+		/**
+		 * Display a warning if ElasticPress is network activated.
+		 */
+		if ( defined( 'EP_IS_NETWORK' ) && EP_IS_NETWORK ) {
+			$status->message[] = wp_kses_post(
+				sprintf(
+					/* translators: Article URL */
+					__(
+						'ElasticPress is network activated. Additional steps are required to ensure Instant Results works for all sites on the network. See our article on <a href="%s" target="_blank">running ElasticPress in network mode</a> for more details.',
+						'elasticpress'
+					),
+					'https://elasticpress.zendesk.com/hc/en-us/articles/10841087797901-Running-ElasticPress-in-a-WordPress-Multisite-Network-Mode-'
+				)
+			);
+		}
+
 		return $status;
 	}