Dynamic (non-explicitly declared) properties are deprecated as of PHP 8.2 and are expected to become a fatal error in PHP 9.0.
There are a number of ways to mitigate this:
* If it is an accidental typo for a declared property: fix the typo.
* For known properties: declare them on the class.
* For unknown properties: add the magic `__get()`, `__set()`, et al. methods to the class or let the class extend `stdClass` which has highly optimized versions of these magic methods built in.
* For unknown ''use'' of dynamic properties, the `#[AllowDynamicProperties]` attribute can be added to the class. The attribute will automatically be inherited by child classes.
Trac ticket #56034 is open to investigate and handle the third and fourth type of situations, however it has become clear this will need more time and will not be ready in time for WP 6.1.
To reduce “noise” in the meantime, both in the error logs of WP users moving onto PHP 8.2, in the test run logs of WP itself, in test runs of plugins and themes, as well as to prevent duplicate tickets from being opened for the same issue, this commit adds the `#[AllowDynamicProperties]` attribute to all “parent” classes in WP.
The logic used for this commit is as follows:
* If a class already has the attribute: no action needed.
* If a class does not `extend`: add the attribute.
* If a class does `extend`:
- If it extends `stdClass`: no action needed (as `stdClass` supports dynamic properties).
- If it extends a PHP native class: add the attribute.
- If it extends a class from one of WP's external dependencies: add the attribute.
* In all other cases: no action — the attribute should not be needed as child classes inherit from the parent.
Whether or not a class contains magic methods has not been taken into account, as a review of the currently existing magic methods has shown that those are generally not sturdy enough and often even set dynamic properties (which they should not). See the [https://www.youtube.com/watch?v=vDZWepDQQVE live stream from August 16, 2022] for more details.
This commit only affects classes in the `src` directory of WordPress core.
* Tests should not get this attribute, but should be fixed to not use dynamic properties instead. Patches for this are already being committed under ticket #56033.
* While a number bundled themes (2014, 2019, 2020, 2021) contain classes, they are not a part of this commit and may be updated separately.
Reference: [https://wiki.php.net/rfc/deprecate_dynamic_properties PHP RFC: Deprecate dynamic properties].
Follow-up to [53922].
Props jrf, hellofromTonya, markjaquith, peterwilsoncc, costdev, knutsp, aristath.
See #56513, #56034.
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Prevent unnecessary database queries on page load by initializing widget options. On sites with uninitialized widgets, this prevents one or two database queries per uninitialized widget on each page load.
Props Chouby, mvraghavan, costdev, peterwilsoncc, spacedmonkey, mukesh27.
Fixes#54677.
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[33696] introduced support returning `ArrayIterator` and `ArrayObject` objects from `WP_Widget::get_settings()`.
Per the PHP manual, `array_key_exists()` stopped supporting this in PHP 8.0.0 and deprecated in PHP 7.4.0.
>For backward compatibility reasons, array_key_exists() will also return true if key is a property defined within an object given as array. This behaviour is deprecated as of PHP 7.4.0, and removed as of PHP 8.0.0.
This commit uses `isset()` instead of `array_key_exists()` which is supported on all current versions of PHP.
Includes unit tests.
Ref:
* https://www.php.net/manual/en/function.array-key-exists.php#refsect1-function.array-key-exists-notes
Follow-up to [32602], [33696].
Props dlh, hellofromTonya, jrf, sergeybiryukov.
Fixes#52728.
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This reverts the changes to `id_base` from [50953] due to backward compatibility concerns, and instead focuses on the `id` and `class` attributes specifically.
With this change, any backslashes in the `id` or `class` attributes for a namespaced widget class are converted to underscores, making it easier to style the output or target the widget with JavaScript.
Follow-up to [50953].
Fixes#44098.
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The `id_base` value is used for the widget's `id` and `class` attributes and also for the option name which stores the widget settings (unless the widget specifies a custom `option_name` value).
With this change, any backslashes in the `id_base` for a namespaced widget class are converted to hyphens, making it easier to style the output or target the widget with JavaScript.
This also avoids a `preg_match(): Compilation failed` PHP warning from `next_widget_id_number()` on the Widgets screen, previously caused by unescaped backslashes.
Props Mte90, hermpheus, rogerlos, welcher, SergeyBiryukov.
Fixes#44098.
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WPCS 1.0.0 includes a bunch of new auto-fixers, which drops the number of coding standards issues across WordPress significantly. Prior to running the auto-fixers, there were 15,312 issues detected. With this commit, we now drop to 4,769 issues.
This change includes three notable additions:
- Multiline function calls must now put each parameter on a new line.
- Auto-formatting files is now part of the `grunt precommit` script.
- Auto-fixable coding standards issues will now cause Travis failures.
Fixes#44600.
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Prior to about 2013, many class methods lacked even access modifiers which made the `@access` notations that much more useful. Now that we've gotten to a point where the codebase is more mature from a maintenance perspective and we can finally remove these notations. Notable exceptions to this change include standalone functions notated as private as well as some classes still considered to represent "private" APIs.
See #41452.
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This removes the `die()` call from `WP_Widget::widget()` and converts it to an abstract method.
`WP_Widgets` (later renamed to `WP_Widget`) was introduced in [10764] where the minimum PHP requirement was 4.3, thus no `abstract` was available.
Props johnbillion.
Fixes#35981.
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* Introduces `customize-selective-refresh-widgets` theme support feature and adds to themes.
* Introduces `customize_selective_refresh` arg for `WP_Widget::$widget_options` and adds to all core widgets.
* Remove `selective_refresh` from being a component that can be removed via `customize_loaded_components` filter.
* Add `WP_Customize_Widgets::get_selective_refreshable_widgets()` and `WP_Customize_Widgets::is_widget_selective_refreshable()`.
* Fix default `selector` for `Partial` instances.
* Implement and improve Masronry sidebar refresh logic in Twenty Thirteen and Twenty Fourteen, including preservation of initial widget position after refresh.
* Re-initialize ME.js when refreshing `Twenty_Fourteen_Ephemera_Widget`.
See #27355.
Fixes#35855.
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It's important for every file in WordPress, regardless of makeup or architecture, to have its own file header, even if the file contains nothing but a class. When parsed, files and classes are mutually exclusive and should be documented with this in mind.
See [33746]. See #33413.
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