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<title>[56066] trunk/src/wp-includes/class-wpdb.php: Database: Move the if statement outside of the loop.</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/56066">56066</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/56066","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>spacedmonkey</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-06-27 14:33:39 +0000 (Tue, 27 Jun 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: Move the if statement outside of the loop.
In the foreach loop of last results, move the if statement outside of the loop. There is no need to check every element in the array for the output type. Do this once outside of the loop. For large database queries with lots of rows returned, this should improve PHP performance.
Props spacedmonkey, Cybr, johnbillion, costdev, joemcgill.
Fixes <a href="https://core.trac.wordpress.org/ticket/56541">#56541</a>.</pre>
<h3>Modified Paths</h3>
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<li><a href="#trunksrcwpincludesclasswpdbphp">trunk/src/wp-includes/class-wpdb.php</a></li>
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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 2023-06-27 14:20:18 UTC (rev 56065)
+++ trunk/src/wp-includes/class-wpdb.php 2023-06-27 14:33:39 UTC (rev 56066)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3137,11 +3137,13 @@
</span><span class="cx" style="display: block; padding: 0 10px"> } elseif ( ARRAY_A === $output || ARRAY_N === $output ) {
</span><span class="cx" style="display: block; padding: 0 10px"> // Return an integer-keyed array of...
</span><span class="cx" style="display: block; padding: 0 10px"> if ( $this->last_result ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- foreach ( (array) $this->last_result as $row ) {
- if ( ARRAY_N === $output ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( ARRAY_N === $output ) {
+ foreach ( (array) $this->last_result as $row ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> // ...integer-keyed row arrays.
</span><span class="cx" style="display: block; padding: 0 10px"> $new_array[] = array_values( get_object_vars( $row ) );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- } else {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ }
+ } else {
+ foreach ( (array) $this->last_result as $row ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> // ...column name-keyed row arrays.
</span><span class="cx" style="display: block; padding: 0 10px"> $new_array[] = get_object_vars( $row );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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