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<title>[47585] trunk/src/wp-admin/includes/class-wp-site-health.php: Site Health: Detect an active PHP session as a possible reason for HTTP requests timing out.</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/47585">47585</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/47585","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>2020-04-16 08:18:49 +0000 (Thu, 16 Apr 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'>Site Health: Detect an active PHP session as a possible reason for HTTP requests timing out.

PHP sessions created by a `session_start()` function call may interfere with REST API and loopback requests.

An active session should be closed by `session_write_close()` before making any HTTP requests.

Props matthieumota, netweblogic, Clorith, afragen, vjik, SergeyBiryukov.
Fixes <a href="https://core.trac.wordpress.org/ticket/47320">#47320</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadminincludesclasswpsitehealthphp">trunk/src/wp-admin/includes/class-wp-site-health.php</a></li>
</ul>

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<h3>Diff</h3>
<a id="trunksrcwpadminincludesclasswpsitehealthphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/class-wp-site-health.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/class-wp-site-health.php      2020-04-15 11:52:38 UTC (rev 47584)
+++ trunk/src/wp-admin/includes/class-wp-site-health.php        2020-04-16 08:18:49 UTC (rev 47585)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1084,6 +1084,52 @@
</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><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * Test if there's an active PHP session that can affect loopback requests.
+        *
+        * @since 5.5.0
+        *
+        * @return array The test results.
+        */
+       public function get_test_php_sessions() {
+               $result = array(
+                       'label'       => __( 'No PHP sessions detected' ),
+                       'status'      => 'good',
+                       'badge'       => array(
+                               'label' => __( 'Performance' ),
+                               'color' => 'blue',
+                       ),
+                       'description' => sprintf(
+                               '<p>%s</p>',
+                               sprintf(
+                                       /* translators: 1: session_start(), 2: session_write_close() */
+                                       __( 'PHP sessions created by a %1$s function call may interfere with REST API and loopback requests. An active session should be closed by %2$s before making any HTTP requests.' ),
+                                       '<code>session_start()</code>',
+                                       '<code>session_write_close()</code>'
+                               )
+                       ),
+                       'test'        => 'php_sessions',
+               );
+
+               if ( PHP_SESSION_ACTIVE === session_status() ) {
+                       $result['status'] = 'critical';
+
+                       $result['label'] = __( 'An active PHP session was detected' );
+
+                       $result['description'] = sprintf(
+                               '<p>%s</p>',
+                               sprintf(
+                                       /* translators: 1: session_start(), 2: session_write_close() */
+                                       __( 'A PHP session was created by a %1$s function call. This interferes with REST API and loopback requests. The session should be closed by %2$s before making any HTTP requests.' ),
+                                       '<code>session_start()</code>',
+                                       '<code>session_write_close()</code>'
+                               )
+                       );
+               }
+
+               return $result;
+       }
+
+       /**
</ins><span class="cx" style="display: block; padding: 0 10px">          * Test if the SQL server is up to date.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="cx" style="display: block; padding: 0 10px">         * @since 5.2.0
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1939,6 +1985,10 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                        'label' => __( 'PHP Default Timezone' ),
</span><span class="cx" style="display: block; padding: 0 10px">                                        'test'  => 'php_default_timezone',
</span><span class="cx" style="display: block; padding: 0 10px">                                ),
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                'php_sessions'         => array(
+                                       'label' => __( 'PHP Sessions' ),
+                                       'test'  => 'php_sessions',
+                               ),
</ins><span class="cx" style="display: block; padding: 0 10px">                                 'sql_server'           => array(
</span><span class="cx" style="display: block; padding: 0 10px">                                        'label' => __( 'Database Server version' ),
</span><span class="cx" style="display: block; padding: 0 10px">                                        'test'  => 'sql_server',
</span></span></pre>
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