WordPress/wp-includes/version.php
hellofromTonya 4fe5f325ad Options, Meta APIs: Fix "passing null to non-nullable" deprecations to (get|add|update|delete)_option().
In all four of the `get_option()`, `add_option()`, `update_option()` and `delete_option()` functions, the `$option` parameter (i.e. the option name) is passed to the PHP native `trim()` function without prior input validation.

In PHP 8.1, this could lead to a `trim(): Passing null to parameter #1 ($string) of type string is deprecated` for each of these functions.

`trim()`:

- expects a text string and is only useful when ''passed'' a text string as no other variable type can contain whitespace.
- will always return a `string`, which means that in practice for any non-string values passed, it would effectively function as a type cast to string.

This commit:
- Adds a check to verify the `$option` name is a scalar before processing it with `trim()`.
- The "type cast" behavior is maintained.
- If the given `$option` name is not a scalar, such as `null`, the fix prevents the PHP 8.1 deprecation notice.
- Tests are added for valid but undesired option names to safeguard against regressions.

This issue is already covered by:
- the existing `Tests_Option_Option::test_bad_option_names()` test group.
- the new `test_valid_but_undesired_option_names()` tests.

Follow-up to [13858], [22633], [23510], [25002], [51817].

Props jrf, hellofromTonya, pbearne.
See #53635.
Built from https://develop.svn.wordpress.org/trunk@51818


git-svn-id: http://core.svn.wordpress.org/trunk@51425 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2021-09-15 22:19:58 +00:00

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PHP

<?php
/**
* WordPress Version
*
* Contains version information for the current WordPress release.
*
* @package WordPress
* @since 1.2.0
*/
/**
* The WordPress version string.
*
* Holds the current version number for WordPress core. Used to bust caches
* and to enable development mode for scripts when running from the /src directory.
*
* @global string $wp_version
*/
$wp_version = '5.9-alpha-51818';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
*
* @global int $wp_db_version
*/
$wp_db_version = 49752;
/**
* Holds the TinyMCE version.
*
* @global string $tinymce_version
*/
$tinymce_version = '49110-20201110';
/**
* Holds the required PHP version.
*
* @global string $required_php_version
*/
$required_php_version = '5.6.20';
/**
* Holds the required MySQL version.
*
* @global string $required_mysql_version
*/
$required_mysql_version = '5.0';