Gutenberg / newly introduced functions referring to non-existent class properties

[jrf]

Commit [52062] in response to ticket #54335 introduced the _build_block_template_result_from_file() and _build_block_template_result_from_post() functions in the wp-includes/block-template-utils.php file.

These functions directly set properties on the WP_Block_Template class, but are assigning to some properties which don't exist on the class.

This should be fixed.

The $post_types and $area properties are being assigned to from the _build_block_template_result_from_file() and _build_block_template_result_from_post() functions, which were introduced in WP 5.9, but these properties do not explicitly exist on the WP_Block_Template class.

Trac ticket: [](https://core.trac.wordpress.org/ticket/54670)

[jrf]

GitHub PR ​https://github.com/WordPress/wordpress-develop/pull/2072 addresses this.

[hellofromTonya]

Marking PR 2072 for commit.

Opened an issue in the Gutenberg repository to backport the changes to Gutenberg ​https://github.com/WordPress/gutenberg/issues/37533.

[hellofromTonya]

Self-assigning to prepare the commit.

[hellofromTonya]

In 52397:

Editor: Explicitly declare $post_types and $area properties in WP_Block_Template class.

The $post_types and $area properties are assigned in the _build_block_template_result_from_file() and _build_block_template_result_from_post() functions. However, neither property was explicitly declared in the WP_Block_Template class.

This commit explicitly declares both properties in the class. Why? (1) To make the code more readable and maintainable; (2) to avoid a Deprecated: Creation of dynamic property WP_Block_Template::$post_types is deprecated deprecation when PHP 8.2 is released.

Ref:

• PHP 8.2 Deprecate dynamic properties ​https://wiki.php.net/rfc/deprecate_dynamic_properties

Follow-up to [52062].

Props jrf.
Fixes #54670.

Committed via changeset https://core.trac.wordpress.org/changeset/52397.