In PHP 8+, `@` no longer suppresses fatal errors:
> The `@` operator will no longer silence fatal errors (`E_ERROR`, `E_CORE_ERROR`, `E_COMPILE_ERROR`, `E_USER_ERROR`, `E_RECOVERABLE_ERROR`, `E_PARSE`).
Reference: [https://www.php.net/manual/en/migration80.incompatible.php PHP 8: Backward Incompatible Changes].
`disk_free_space()` may be disabled by hosts, which will throw a fatal error on a call to undefined function.
This change prevents the fatal error, and falls back to `false` when `disk_free_space()` is unavailable.
Follow-up to [25540], [25774], [25776], [25831], [25869].
Props costdev, jrf, swb1192, SergeyBiryukov.
Fixes#54826. See #54730.
Built from https://develop.svn.wordpress.org/trunk@52585
git-svn-id: http://core.svn.wordpress.org/trunk@52175 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Follow-up to [52165] where the `version_compare()` fails for 11.8.x versions. This commit changes the version comparison to < 11.9 for deactivating the Gutenberg plugin.
The `_upgrade_580_force_deactivate_incompatible_plugins()` function is no longer needed in 5.9. It's redundant and unnecessary as `_upgrade_590_force_deactivate_incompatible_plugins()` deactivates those versions as well.
Removing `_upgrade_580_force_deactivate_incompatible_plugins()` and moving the deactivation logic back into the `_deactivate_gutenberg_when_incompatible_with_wp()`, thus removing the new private function `_deactivate_gutenberg_when_incompatible_with_wp()` introduced in [52165].
Follow-up [51180], [51266], [52165].
Props hellofromTonya, tobiasbg, clorith, sergeybiryukov, costdev.
Fixes#54405.
Built from https://develop.svn.wordpress.org/trunk@52199
git-svn-id: http://core.svn.wordpress.org/trunk@51791 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Avoid a fatal error due to `WP_Theme_JSON_Schema` and potentially other classes and/or functions redeclarations when updating to WordPress 5.9 with an incompatible version of the Gutenberg plugin.
This commit uses the same strategy from 5.8. Moves the plugin deactivation code (introduced in [51266]) to a private function for reuse in 5.8, 5.9, and future major releases.
Follow-up to [51180], [51266].
Props hellofromTonya, johnbillion, jorbin.
See #54405.
Built from https://develop.svn.wordpress.org/trunk@52165
git-svn-id: http://core.svn.wordpress.org/trunk@51757 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This adds a one-off notice to the dashboard in the event WordPress has automatically deactivated a plugin due to incompatibility with the new version of WordPress.
Introduces the new private function `deactivated_plugins_notice()` to display the notice in the dashboard. Introduces the new auto-loaded option `wp_force_deactivated_plugins` to store a list of automatically deactivated plugins; the option is used on both a site and network level.
Follow up to [51180].
Props desrosj, jorbin, azaozz, SergeyBiryukov, peterwilsoncc.
See #53432.
Built from https://develop.svn.wordpress.org/trunk@51266
git-svn-id: http://core.svn.wordpress.org/trunk@50875 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This avoids a fatal error due to `WP_Block_Template` class redeclaration when updating to WordPress 5.8 with an older version of Gutenberg activated.
Follow-up to [35582] for the REST API plugin.
Props hellofromTonya, oglekler, azaozz, desrosj, pbiron, jorbin, youknowriad, TimothyBlynJacobs, Clorith, markparnell.
See #53432.
Built from https://develop.svn.wordpress.org/trunk@51180
git-svn-id: http://core.svn.wordpress.org/trunk@50789 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This adds some extra details to the message:
* The current PHP or WordPress version.
* The plugin's minimum required PHP or WordPress version.
* A link to the support documentation on how to update PHP.
Props stuffradio, johnbillion, garrett-eclipse, sabernhardt, williampatton, SergeyBiryukov.
Fixes#48245.
Built from https://develop.svn.wordpress.org/trunk@48172
git-svn-id: http://core.svn.wordpress.org/trunk@47941 1a063a9b-81f0-0310-95a4-ce76da25c4cd
When files are copied into place, check whether opcode invalidation is available and attempt to invalidate to avoid unintended behavior or fatal errors from themes, plugins, or core.
Introduces `wp_opcache_invalidate()` to allow safe invalidation of PHP files from opcode cache, and a filter, `wp_opcache_invalidate_file` to override the behavior.
Replaces the existing calls to `opcache_invalidate()` in the plugin and theme editors to use the new function.
Thanks to jnylen0 for porting over a patch from ClassicPress that provided much of the approach for what is being committed.
Props nigro.simone, dd32, JasWSInc, szepe.viktor, swissspidy, JanR, asalce, Garavani, pavelevap, pputzer, GregLone, benoitchantre, jadonn, doc987, kraftbj, Krstarica, jnylen0, nextendweb, williampatton, ayeshrajans, joostdevalk, stevenkussmaul, boogah, jorbin, mikeschroder.
Fixes#36455, #50354.
Built from https://develop.svn.wordpress.org/trunk@48160
git-svn-id: http://core.svn.wordpress.org/trunk@47929 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In WordPress 3.2 support for IE6 was dropped, IE7 followed a few versions later. With the 4.8 release, WordPress officially ended support for Internet Explorer versions 8, 9, and 10. Yet, we still have shipped CSS for the unsupported IE versions....until now! Goodbye to ie.css and star hacks!
* Removes ie.css and `ie` style handle.
* Removes IE specific class names and any related CSS.
* Drops support for IE8 and older in `wp_customize_support_script()`.
* Updates compatibility mode for CSS minification to `ie11`.
Props ayeshrajans, isabel_brison, afercia, netweb, peterwilsoncc, ocean90.
Fixes#17232, #46015.
Built from https://develop.svn.wordpress.org/trunk@47771
git-svn-id: http://core.svn.wordpress.org/trunk@47547 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This avoids the performance overhead of the function call every time `dirname( __FILE__ )` was used instead of `__DIR__`.
This commit also includes:
* Removing unnecessary parentheses from `include`/`require` statements. These are language constructs, not function calls.
* Replacing `include` statements for several files with `require_once`, for consistency:
* `wp-admin/admin-header.php`
* `wp-admin/admin-footer.php`
* `wp-includes/version.php`
Props ayeshrajans, desrosj, valentinbora, jrf, joostdevalk, netweb.
Fixes#48082.
Built from https://develop.svn.wordpress.org/trunk@47198
git-svn-id: http://core.svn.wordpress.org/trunk@46998 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In order to tell WordPress not to install new bundled themes on update, `CORE_UPGRADE_SKIP_NEW_BUNDLED` should be set to `true`, as the name suggests, not `false`.
Follow-up to [39064].
Props tomgreer, knutsp, crdunst.
See #49056.
Built from https://develop.svn.wordpress.org/trunk@47007
git-svn-id: http://core.svn.wordpress.org/trunk@46807 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This allows update failures caused when the native PHP JSON extension is missing to be distinguished from updates that fail because the site does not meet the minimum PHP requirements.
Follow up of [46455].
Reviewed by desrosj, jorbin, johnbillion.
Fixes#47699.
Built from https://develop.svn.wordpress.org/trunk@46560
git-svn-id: http://core.svn.wordpress.org/trunk@46357 1a063a9b-81f0-0310-95a4-ce76da25c4cd
The PHP native JSON extension has been bundled and compiled with PHP by default since version 5.2.0. Because the minimum version of PHP required by WordPress is now 5.6.20 (see #46594 and [45058]), the related polyfills and workarounds have been removed (see [46205-46206,46208]).
However, even though the JSON extension is now included in PHP by default, it is still possible to disable the extension in a custom configuration. This change will prevent sites from upgrading if the JSON extension is disabled to prevent compatibility issues.
Props jrf, jorbin, dd32, desrosj.
Fixes#47699.
Built from https://develop.svn.wordpress.org/trunk@46455
git-svn-id: http://core.svn.wordpress.org/trunk@46253 1a063a9b-81f0-0310-95a4-ce76da25c4cd
We've extracted wp-includes/wp-a11y.js to a reusable package wordpress/a11y which is published on NPM. Let's make sure this package is also used in WordPress core. Once all the JavaScript is built using webpack, we can also import this package wherever it is used and configure webpack to load is an external.
Props omarreiss, herregroen, desrosj, ocean90, afercia, sstoqnov
Built from https://develop.svn.wordpress.org/trunk@46167
git-svn-id: http://core.svn.wordpress.org/trunk@45979 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Add missing translator comments.
* Fix placement of some translator comments. Translator comments should be on the line directly above the line containing the translation function call for optimal compatibility with various `.pot` file generation tools. The CS auto-fixing, which changed some inconsistent function calls to multi-line function calls, is part of the reason why this was no longer the case for a select group of translator comments.
Includes minor code layout fixes.
Polyglots, rejoice! All WordPress core files now have translator comments for all strings with placeholders!
Props jrf, subrataemfluence, GaryJ, webdados, Dency, swissspidy, alvarogois, marcomartins, mihaiiceyro, vladwtz, niq1982, flipkeijzer, michielatyoast, chandrapatel, thrijith, joshuanoyce, FesoVik, tessak22, bhaktirajdev, cleancoded, dhavalkasvala, garrett-eclipse, bibliofille, socalchristina, priyankkpatel, 5hel2l2y, adamsilverstein, JeffPaul, pierlo, SergeyBiryukov.
Fixes#44360.
Built from https://develop.svn.wordpress.org/trunk@45926
git-svn-id: http://core.svn.wordpress.org/trunk@45737 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Noteable changes:
- The `magic_quotes_runtime` and `magic_quotes_sybase` settings were removed in PHP 5.4, so no longer need to be set.
- Some functions that use external libraries can generate errors that can't be tested for, so are globally allowed to silence errors.
- Quite a few functions would cause errors if `safe_mode` was set. This setting was removed in PHP 5.4.
- Only a handful of `header()` calls needed corresponding `headers_sent()` checks for unit tests to pass, but more may need to be added as the nightlies builds are tested.
See #46732.
Built from https://develop.svn.wordpress.org/trunk@45611
git-svn-id: http://core.svn.wordpress.org/trunk@45422 1a063a9b-81f0-0310-95a4-ce76da25c4cd
