Changeset 56709 for trunk/src/wp-includes/block-supports/background.php

Timestamp:

09/26/2023 01:45:23 PM (3 years ago)

Author:

SergeyBiryukov

Message:

Editor: Reduce the use of the _wp_array_get() function to improve performance.

_wp_array_get() is an expensive function, and it's called thousands of times on each page view on the front end. While the function performance was slightly improved in #58376, it is still called more times than it should be.

This commit aims to further optimize its usage:

• In many cases, _wp_array_get() can be replaced with a much simpler and faster isset() check.
• The isset() function is capable of checking nested arrays, so isset( $foo['a']['b']['c'] ) will return false even if $foo['a'] is unset, without throwing any errors or warnings.
• When _wp_array_get() cannot be directly replaced with isset(), it would be good practice to wrap it in an isset() function so that _wp_array_get() only runs when it needs to.

Original PR from Gutenberg repository:

• ​#51116 Performance improvement: Reduce the use of the _wp_array_get() function

Follow-up to [55851], [56382].

Props aristath, jrf, spacedmonkey, mukesh27, swissspidy, hellofromTonya.
Fixes #59405.

File:

• trunk/src/wp-includes/block-supports/background.php (modified) (1 diff)

trunk/src/wp-includes/block-supports/background.php

@@ -59 +59 @@
         }
 
-        $background_image_source = _wp_array_get( $block_attributes, array( 'style', 'background', 'backgroundImage', 'source' ), null );
-        $background_image_url    = _wp_array_get( $block_attributes, array( 'style', 'background', 'backgroundImage', 'url' ), null );
-        $background_size         = _wp_array_get( $block_attributes, array( 'style', 'background', 'backgroundSize' ), 'cover' );
+        $background_image_source = isset( $block_attributes['style']['background']['backgroundImage']['source'] )
+                ? $block_attributes['style']['background']['backgroundImage']['source']
+                : null;
+        $background_image_url    = isset( $block_attributes['style']['background']['backgroundImage']['url'] )
+                ? $block_attributes['style']['background']['backgroundImage']['url']
+                : null;
+        $background_size         = isset( $block_attributes['style']['background']['backgroundSize'] )
+                ? $block_attributes['style']['background']['backgroundSize']
+                : 'cover';
 
         $background_block_styles = array();