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<title>[57089] trunk: Database: Reinstate wpdb::$use_mysqli property.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/57089">57089</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/57089","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>hellofromTonya</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-11-08 20:31:34 +0000 (Wed, 08 Nov 2023)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Database: Reinstate wpdb::$use_mysqli property.
Partial revert of <a href="https://core.trac.wordpress.org/changeset/56475">[56475]</a> to reinstate the private `wpdb::$use_mysqli` property and set to its default to `true`. This private property was / is accessible through the magic methods. Though Core's usage of this property was removed by <a href="https://core.trac.wordpress.org/changeset/56475">[56475]</a>, plugins are using the property. Reinstating it resolves the BC break.
Follow up to <a href="https://core.trac.wordpress.org/changeset/56475">[56475]</a>.
Props jason_the_adams, joemcgill, johnbillion, johnjamesjacoby, jrf, rajinsharwar, renehermi.
Fixes <a href="https://core.trac.wordpress.org/ticket/59846">#59846</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesclasswpdbphp">trunk/src/wp-includes/class-wpdb.php</a></li>
<li><a href="#trunktestsphpunittestsdbphp">trunk/tests/phpunit/tests/db.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunksrcwpincludesclasswpdbphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wpdb.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wpdb.php 2023-11-08 20:30:06 UTC (rev 57088)
+++ trunk/src/wp-includes/class-wpdb.php 2023-11-08 20:31:34 UTC (rev 57089)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -691,6 +691,21 @@
</span><span class="cx" style="display: block; padding: 0 10px"> private $allow_unsafe_unquoted_parameters = true;
</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">+ * Whether to use the mysqli extension over mysql. This is no longer used as the mysql
+ * extension is no longer supported.
+ *
+ * Default true.
+ *
+ * @since 3.9.0
+ * @since 6.4.0 This property was removed.
+ * @since 6.4.1 This property was reinstated and its default value was changed to true.
+ * The property is no longer used in core but may be accessed externally.
+ *
+ * @var bool
+ */
+ private $use_mysqli = true;
+
+ /**
</ins><span class="cx" style="display: block; padding: 0 10px"> * Whether we've managed to successfully connect at some point.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.9.0
</span></span></pre></div>
<a id="trunktestsphpunittestsdbphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/db.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/db.php 2023-11-08 20:30:06 UTC (rev 57088)
+++ trunk/tests/phpunit/tests/db.php 2023-11-08 20:31:34 UTC (rev 57089)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2469,4 +2469,17 @@
</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">+
+ /**
+ * This private property is no longer used but needs to be retained as it can be
+ * accessed externally due to the `__get()` magic method.
+ *
+ * @ticket 59118
+ * @ticket 59846
+ */
+ public function test_use_mysqli_property_access() {
+ global $wpdb;
+
+ $this->assertTrue( $wpdb->use_mysqli );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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