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<title>[32545] trunk/src: When calling `unset()`, it is unnecessary to immediately precede it with a call to `isset()`.</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/32545">32545</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/32545","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>wonderboymusic</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2015-05-22 05:46:47 +0000 (Fri, 22 May 2015)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>When calling `unset()`, it is unnecessary to immediately precede it with a call to `isset()`.
See <a href="https://core.trac.wordpress.org/ticket/32444">#32444</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadminincludesimagephp">trunk/src/wp-admin/includes/image.php</a></li>
<li><a href="#trunksrcwpadminincludesmediaphp">trunk/src/wp-admin/includes/media.php</a></li>
<li><a href="#trunksrcwpadminincludesnavmenuphp">trunk/src/wp-admin/includes/nav-menu.php</a></li>
<li><a href="#trunksrcwpincludesclasswpembedphp">trunk/src/wp-includes/class-wp-embed.php</a></li>
<li><a href="#trunksrcwpincludesclasswpwalkerphp">trunk/src/wp-includes/class-wp-walker.php</a></li>
<li><a href="#trunksrcwpincludesgeneraltemplatephp">trunk/src/wp-includes/general-template.php</a></li>
<li><a href="#trunksrcwpincludespluginphp">trunk/src/wp-includes/plugin.php</a></li>
<li><a href="#trunksrcwpincludespostphp">trunk/src/wp-includes/post.php</a></li>
<li><a href="#trunksrcwpincludeswidgetsphp">trunk/src/wp-includes/widgets.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadminincludesimagephp"></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/image.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/image.php 2015-05-22 05:14:30 UTC (rev 32544)
+++ trunk/src/wp-admin/includes/image.php 2015-05-22 05:46:47 UTC (rev 32545)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -190,8 +190,7 @@
</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"> // Remove the blob of binary data from the array.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset( $metadata['image']['data'] ) )
- unset( $metadata['image']['data'] );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $metadata['image']['data'] );
</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"> * Filter the generated attachment meta data.
</span></span></pre></div>
<a id="trunksrcwpadminincludesmediaphp"></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/media.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/media.php 2015-05-22 05:14:30 UTC (rev 32544)
+++ trunk/src/wp-admin/includes/media.php 2015-05-22 05:46:47 UTC (rev 32545)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -355,8 +355,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> ), $post_data );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // This should never be set as it would then overwrite an existing attachment.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset( $attachment['ID'] ) )
- unset( $attachment['ID'] );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $attachment['ID'] );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Save the data
</span><span class="cx" style="display: block; padding: 0 10px"> $id = wp_insert_attachment($attachment, $file, $post_id);
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -419,8 +418,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> ), $post_data );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // This should never be set as it would then overwrite an existing attachment.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset( $attachment['ID'] ) )
- unset( $attachment['ID'] );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $attachment['ID'] );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Save the attachment metadata
</span><span class="cx" style="display: block; padding: 0 10px"> $id = wp_insert_attachment($attachment, $file, $post_id);
</span></span></pre></div>
<a id="trunksrcwpadminincludesnavmenuphp"></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/nav-menu.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/nav-menu.php 2015-05-22 05:14:30 UTC (rev 32544)
+++ trunk/src/wp-admin/includes/nav-menu.php 2015-05-22 05:46:47 UTC (rev 32545)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1280,10 +1280,11 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $menu_item_db_id = wp_update_nav_menu_item( $nav_menu_selected_id, ( $_POST['menu-item-db-id'][$_key] != $_key ? 0 : $_key ), $args );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( is_wp_error( $menu_item_db_id ) )
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( is_wp_error( $menu_item_db_id ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> $messages[] = '<div id="message" class="error"><p>' . $menu_item_db_id->get_error_message() . '</p></div>';
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- elseif ( isset( $menu_items[$menu_item_db_id] ) )
- unset( $menu_items[$menu_item_db_id] );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ } else {
+ unset( $menu_items[ $menu_item_db_id ] );
+ }
</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></div>
<a id="trunksrcwpincludesclasswpembedphp"></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-wp-embed.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-embed.php 2015-05-22 05:14:30 UTC (rev 32544)
+++ trunk/src/wp-includes/class-wp-embed.php 2015-05-22 05:46:47 UTC (rev 32545)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -109,8 +109,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @param int $priority Optional. The priority of the handler to be removed (default: 10).
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public function unregister_handler( $id, $priority = 10 ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset($this->handlers[$priority][$id]) )
- unset($this->handlers[$priority][$id]);
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $this->handlers[ $priority ][ $id ] );
</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></div>
<a id="trunksrcwpincludesclasswpwalkerphp"></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-wp-walker.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-walker.php 2015-05-22 05:14:30 UTC (rev 32544)
+++ trunk/src/wp-includes/class-wp-walker.php 2015-05-22 05:46:47 UTC (rev 32545)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -408,9 +408,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> foreach ( (array) $children_elements[$id] as $child )
</span><span class="cx" style="display: block; padding: 0 10px"> $this->unset_children( $child, $children_elements );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset($children_elements[$id]) )
- unset( $children_elements[$id] );
-
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $children_elements[ $id ] );
</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"> } // Walker
</span></span></pre></div>
<a id="trunksrcwpincludesgeneraltemplatephp"></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/general-template.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/general-template.php 2015-05-22 05:14:30 UTC (rev 32544)
+++ trunk/src/wp-includes/general-template.php 2015-05-22 05:46:47 UTC (rev 32545)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2668,9 +2668,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Remove the format argument from the array of query arguments, to avoid overwriting custom format.
</span><span class="cx" style="display: block; padding: 0 10px"> foreach ( $format_args as $format_arg => $format_arg_value ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset( $url_query_args[ $format_arg ] ) ) {
- unset( $url_query_args[ $format_arg ] );
- }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $url_query_args[ $format_arg ] );
</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"> $args['add_args'] = array_merge( $args['add_args'], urlencode_deep( $url_query_args ) );
</span></span></pre></div>
<a id="trunksrcwpincludespluginphp"></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/plugin.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/plugin.php 2015-05-22 05:14:30 UTC (rev 32544)
+++ trunk/src/wp-includes/plugin.php 2015-05-22 05:46:47 UTC (rev 32545)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -332,9 +332,7 @@
</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">- if ( isset( $merged_filters[ $tag ] ) ) {
- unset( $merged_filters[ $tag ] );
- }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $merged_filters[ $tag ] );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> return true;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre></div>
<a id="trunksrcwpincludespostphp"></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/post.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/post.php 2015-05-22 05:14:30 UTC (rev 32544)
+++ trunk/src/wp-includes/post.php 2015-05-22 05:46:47 UTC (rev 32545)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1755,8 +1755,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> function remove_post_type_support( $post_type, $feature ) {
</span><span class="cx" style="display: block; padding: 0 10px"> global $_wp_post_type_features;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset( $_wp_post_type_features[$post_type][$feature] ) )
- unset( $_wp_post_type_features[$post_type][$feature] );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $_wp_post_type_features[ $post_type ][ $feature ] );
</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></div>
<a id="trunksrcwpincludeswidgetsphp"></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/widgets.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/widgets.php 2015-05-22 05:14:30 UTC (rev 32544)
+++ trunk/src/wp-includes/widgets.php 2015-05-22 05:46:47 UTC (rev 32545)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -569,8 +569,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @param string $widget_class The name of a {@see WP_Widget} subclass.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public function unregister( $widget_class ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset($this->widgets[$widget_class]) )
- unset($this->widgets[$widget_class]);
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $this->widgets[ $widget_class ] );
</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="lines" style="display: block; padding: 0 10px; color: #888">@@ -851,8 +850,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> function unregister_sidebar( $name ) {
</span><span class="cx" style="display: block; padding: 0 10px"> global $wp_registered_sidebars;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset( $wp_registered_sidebars[$name] ) )
- unset( $wp_registered_sidebars[$name] );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $wp_registered_sidebars[ $name ] );
</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="lines" style="display: block; padding: 0 10px; color: #888">@@ -893,12 +891,8 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $id_base = _get_widget_id_base($id);
</span><span class="cx" style="display: block; padding: 0 10px"> if ( in_array($output_callback, $_wp_deprecated_widgets_callbacks, true) && !is_callable($output_callback) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset($wp_registered_widget_controls[$id]) )
- unset($wp_registered_widget_controls[$id]);
-
- if ( isset($wp_registered_widget_updates[$id_base]) )
- unset($wp_registered_widget_updates[$id_base]);
-
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $wp_registered_widget_controls[ $id ] );
+ unset( $wp_registered_widget_updates[ $id_base ] );
</ins><span class="cx" style="display: block; padding: 0 10px"> return;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1024,9 +1018,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( in_array($control_callback, $_wp_deprecated_widgets_callbacks, true) && !is_callable($control_callback) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset($wp_registered_widgets[$id]) )
- unset($wp_registered_widgets[$id]);
-
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ unset( $wp_registered_widgets[ $id ] );
</ins><span class="cx" style="display: block; padding: 0 10px"> return;
</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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