wp-includes/block-supports/layout.php:67Returns the container-layout subset of a layout object.
$layoutmixedarrayfunction wp_get_layout_container_values( $layout ) { if ( ! is_array( $layout ) ) { return array(); } return array_diff_key( $layout, array_flip( array( 'selfStretch', 'flexSize', 'columnStart', 'columnSpan', 'rowStart', 'rowSpan' ) ) );}Introduced in 7.1.0.
Signature, return type and hooks compared across 1 parsed release.
src/wp-includes/block-supports/layout.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.