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<title>[49167] Upgrade/Install: Check if plugin or theme update results are available before applying the notification filters.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/49167">49167</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/49167","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>SergeyBiryukov</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2020-10-15 23:29:17 +0000 (Thu, 15 Oct 2020)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Upgrade/Install: Check if plugin or theme update results are available before applying the notification filters.

This avoids a PHP notice for an undefined index of either `plugin` or `theme` in the `auto_{plugin|theme}_update_send_email` filter hook.

Props afragen, audrasjb.
Merges <a href="https://core.trac.wordpress.org/changeset/49166">[49166]</a> to the 5.5 branch.
Fixes <a href="https://core.trac.wordpress.org/ticket/51400">#51400</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branches55srcwpadminincludesclasswpautomaticupdaterphp">branches/5.5/src/wp-admin/includes/class-wp-automatic-updater.php</a></li>
</ul>

<h3>Property Changed</h3>
<ul>
<li><a href="#branches55">branches/5.5/</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: branches/5.5
</span><span class="cx" style="display: block; padding: 0 10px">===================================================================
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">--- branches/5.5 2020-10-15 23:25:19 UTC (rev 49166)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ branches/5.5  2020-10-15 23:29:17 UTC (rev 49167)
</ins><a id="branches55"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: branches/5.5</h4>
<pre class="diff"><span>
</span></pre></div>
<a id="svnmergeinfo"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: svn:mergeinfo</h4></div>
<span class="cx" style="display: block; padding: 0 10px"> /branches/3.4:21757
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/4.9:43557,43622
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.0:43681-43682,43684-43688,43719-43720,43723,43726-43727,43729-43731,43734-43744,43747,43751-43754,43758,43760-43765,43767-43770,43772,43774-43781,43783,43785,43790-43806,43808-43821,43825,43828,43830-43834,43836-43843,43846-43863,43867-43889,43891-43894,43897-43905,43908-43909,43911-43929,43931-43942,43946-43947,43949-43956,43959-43964,43967-43969,43988,43994,44014,44017,44047,44183,44185,44187-44206,44208-44213,44231-44232,44235,44248,44284,44287-44288
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/trunk:48685-48686,48688-48689,48696,48701,48703,48707,48717,48719,48721,48725-48726,48729-48731,48734,48736,48742,48745,48748-48751,48757-48758,48761,48767,48770,48772,48775,48777-48778,48783,48792,48796-48797,48800-48802,48808-48809,48814,48817,48820,48827,48832,48842,48850,48852-48853,48856,48859,48862,48864,48866,48868,48870,48872,48874,48876,48878,48880-48881,48884,48886,48888,48890,48892,48894-48895,48897,48899,48904,48908-48913,48918,48923-48924,48938,48946,48958
</del><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/trunk:48685-48686,48688-48689,48696,48701,48703,48707,48717,48719,48721,48725-48726,48729-48731,48734,48736,48742,48745,48748-48751,48757-48758,48761,48767,48770,48772,48775,48777-48778,48783,48792,48796-48797,48800-48802,48808-48809,48814,48817,48820,48827,48832,48842,48850,48852-48853,48856,48859,48862,48864,48866,48868,48870,48872,48874,48876,48878,48880-48881,48884,48886,48888,48890,48892,48894-48895,48897,48899,48904,48908-48913,48918,48923-48924,48938,48946,48958,49166
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="branches55srcwpadminincludesclasswpautomaticupdaterphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.5/src/wp-admin/includes/class-wp-automatic-updater.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.5/src/wp-admin/includes/class-wp-automatic-updater.php 2020-10-15 23:25:19 UTC (rev 49166)
+++ branches/5.5/src/wp-admin/includes/class-wp-automatic-updater.php   2020-10-15 23:29:17 UTC (rev 49167)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -887,44 +887,48 @@
</span><span class="cx" style="display: block; padding: 0 10px">                $successful_updates = array();
</span><span class="cx" style="display: block; padding: 0 10px">                $failed_updates     = array();
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                /**
-                * Filters whether to send an email following an automatic background plugin update.
-                *
-                * @since 5.5.0
-                * @since 5.5.1 Added the $update_results parameter.
-                *
-                * @param bool  $enabled        True if plugins notifications are enabled, false otherwise.
-                * @param array $update_results The results of plugins update tasks.
-                */
-               $notifications_enabled = apply_filters( 'auto_plugin_update_send_email', true, $update_results['plugin'] );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         if ( ! empty( $update_results['plugin'] ) ) {
+                       /**
+                        * Filters whether to send an email following an automatic background plugin update.
+                        *
+                        * @since 5.5.0
+                        * @since 5.5.1 Added the `$update_results` parameter.
+                        *
+                        * @param bool  $enabled        True if plugin update notifications are enabled, false otherwise.
+                        * @param array $update_results The results of plugins update tasks.
+                        */
+                       $notifications_enabled = apply_filters( 'auto_plugin_update_send_email', true, $update_results['plugin'] );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                if ( ! empty( $update_results['plugin'] ) && $notifications_enabled ) {
-                       foreach ( $update_results['plugin'] as $update_result ) {
-                               if ( true === $update_result->result ) {
-                                       $successful_updates['plugin'][] = $update_result;
-                               } else {
-                                       $failed_updates['plugin'][] = $update_result;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 if ( $notifications_enabled ) {
+                               foreach ( $update_results['plugin'] as $update_result ) {
+                                       if ( true === $update_result->result ) {
+                                               $successful_updates['plugin'][] = $update_result;
+                                       } else {
+                                               $failed_updates['plugin'][] = $update_result;
+                                       }
</ins><span class="cx" style="display: block; padding: 0 10px">                                 }
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                /**
-                * Filters whether to send an email following an automatic background theme update.
-                *
-                * @since 5.5.0
-                * @since 5.5.1 Added the $update_results parameter.
-                *
-                * @param bool  $enabled True if notifications are enabled, false otherwise.
-                * @param array $update_results The results of theme update tasks.
-                */
-               $notifications_enabled = apply_filters( 'auto_theme_update_send_email', true, $update_results['theme'] );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         if ( ! empty( $update_results['theme'] ) ) {
+                       /**
+                        * Filters whether to send an email following an automatic background theme update.
+                        *
+                        * @since 5.5.0
+                        * @since 5.5.1 Added the `$update_results` parameter.
+                        *
+                        * @param bool  $enabled        True if theme update notifications are enabled, false otherwise.
+                        * @param array $update_results The results of theme update tasks.
+                        */
+                       $notifications_enabled = apply_filters( 'auto_theme_update_send_email', true, $update_results['theme'] );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                if ( ! empty( $update_results['theme'] ) && $notifications_enabled ) {
-                       foreach ( $update_results['theme'] as $update_result ) {
-                               if ( true === $update_result->result ) {
-                                       $successful_updates['theme'][] = $update_result;
-                               } else {
-                                       $failed_updates['theme'][] = $update_result;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 if ( $notifications_enabled ) {
+                               foreach ( $update_results['theme'] as $update_result ) {
+                                       if ( true === $update_result->result ) {
+                                               $successful_updates['theme'][] = $update_result;
+                                       } else {
+                                               $failed_updates['theme'][] = $update_result;
+                                       }
</ins><span class="cx" style="display: block; padding: 0 10px">                                 }
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span></span></pre>
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