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The unknown use of unknown dynamic property within the `WP_Text_Diff_Renderer_Table` property magic methods is now deprecated. A descriptive deprecation notice is provided to alert developers to declare the property on the child class extending `WP_Text_Diff_Renderer_Table`. Changes in this commit: * Adds a deprecation notice to the `__get()`, `__set()`, `__isset()`, `__unset()` magic methods, i.e. to alert and inform developers when attempting to get/set/isset/unset a dynamic property. * Fixes `__get()` to explicitly returns `null` when attempting to get a dynamic property. * Fixes `__set()` by removing the value return after setting a declared property, as (a) unnecessary and (b) `__set()` should return `void` [https://www.php.net/manual/en/language.oop5.overloading.php#object.set per the PHP handbook]. * Fixes `__isset()` to return `false` if not in the `$compat_fields`, as `isset()` and `__isset()` should always return `bool`: * [https://www.php.net/manual/en/language.oop5.overloading.php#object.isset `__isset()` in the PHP manual] * [https://www.php.net/manual/en/function.isset.php `isset()` in the PHP manual] * Adds a test class with happy and unhappy paths for these changes. For backward compatibility, no changes are made to the internal declared properties listed in `$compat_fields` and accessed through the magic methods. For example: A child class uses a property named `$data` that is not declared as a property on the child class. When getting its value, e.g. `$user_query->data`, the `WP_Text_Diff_Renderer_Table::__get()` magic method is invoked, the following deprecation notice thrown, and `null` returned: >The property `data` is not declared. Setting a dynamic property is deprecated since version 6.4.0! Instead, declare the property on the class. === Why not remove the magic methods, remove the `$compat_fields` property, and restore the properties `public`? tl;dr Backward compatibility. If a plugin adds a property to `$compat_fields` array, then sites using that plugin would experience (a) an `Undefined property` `Warning` (PHP 8) | `Notice` (PHP 7) and (b) a possible change in behavior. === Why not limit the deprecation for PHP versions >= 8.2? tl;dr original design intent and inform The magic methods and `$compat_fields` property were added for one purpose: to continue providing external access to internal properties declared on `WP_Text_Diff_Renderer_Table`. They were not intended to be used for dynamic properties. Deprecating that unintended usage both alerts developers a change is needed in their child class and informs them what to change. References: * Dynamic (non-explicitly declared) properties are deprecated as of PHP 8.2 and are expected to become a fatal error in PHP 9.0. * A [https://www.youtube.com/live/vDZWepDQQVE?feature=share&t=10097 live open public working session] where these changes were discussed and agreed to. * [https://wiki.php.net/rfc/deprecate_dynamic_properties PHP RFC: Deprecate dynamic properties.] Follow-up to [28525], [31135]. Props antonvlasenko, rajinsharwar, jrf, markjaquith, hellofromTonya, SergeyBiryukov, desrosj, peterwilsoncc, audrasjb, costdev, oglekler, jeffpaul. Fixes #58898. See #56034. Built from https://develop.svn.wordpress.org/trunk@56354 git-svn-id: http://core.svn.wordpress.org/trunk@55866 1a063a9b-81f0-0310-95a4-ce76da25c4cd
48 lines
938 B
PHP
48 lines
938 B
PHP
<?php
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/**
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* WordPress Version
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*
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* Contains version information for the current WordPress release.
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*
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* @package WordPress
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* @since 1.2.0
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*/
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/**
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* The WordPress version string.
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*
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* Holds the current version number for WordPress core. Used to bust caches
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* and to enable development mode for scripts when running from the /src directory.
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*
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* @global string $wp_version
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*/
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$wp_version = '6.4-alpha-56354';
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/**
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* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
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*
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* @global int $wp_db_version
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*/
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$wp_db_version = 55853;
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/**
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* Holds the TinyMCE version.
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*
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* @global string $tinymce_version
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*/
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$tinymce_version = '49110-20201110';
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/**
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* Holds the required PHP version.
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*
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* @global string $required_php_version
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*/
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$required_php_version = '7.0.0';
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/**
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* Holds the required MySQL version.
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*
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* @global string $required_mysql_version
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*/
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$required_mysql_version = '5.0';
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