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WordPress/wp-admin/includes
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Sergey Biryukov ab263f93e5 Upgrade/Install: Check if the disk_free_space() function exists before calling it. 
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
2022-01-17 11:41:03 +00:00
..
admin-filters.php
Upgrade/Install: Notify users of deactivated plugins during upgrade.
2021-06-30 00:21:58 +00:00
admin.php
Code Modernization: Replace dirname( __FILE__ ) calls with __DIR__ magic constant.
2020-02-06 06:33:11 +00:00
ajax-actions.php
Taxonomy: Display update notices when adding terms.
2021-11-15 22:24:01 +00:00
bookmark.php
Administration: Improve the message about installing the Link Manager plugin to use legacy Links screen.
2021-05-25 20:14:59 +00:00
class-automatic-upgrader-skin.php
Code Modernization: Fix reserved keyword and parameter name mismatches for parent/child classes in WP_Upgrader_Skin::feedback().
2021-09-09 13:48:56 +00:00
class-bulk-plugin-upgrader-skin.php
Text Changes: Unify various "Back to..." vs. "Return to..." vs. "Go to..." strings.
2020-11-09 10:53:10 +00:00
class-bulk-theme-upgrader-skin.php
Text Changes: Unify various "Back to..." vs. "Return to..." vs. "Go to..." strings.
2020-11-09 10:53:10 +00:00
class-bulk-upgrader-skin.php
Code Modernization: Fix parameter name mismatches for parent/child classes in WP_Upgrader_Skin::error().
2021-09-09 13:59:56 +00:00
class-core-upgrader.php
Upgrade/Install: Typo correction in a Core_Upgrader class inline comment.
2022-01-14 15:14:00 +00:00
class-custom-background.php
Customize: Hide native control on background position field.
2021-08-19 02:07:56 +00:00
class-custom-image-header.php
Administration: Replace "Current theme" with "Active theme" in user facing strings.
2022-01-15 08:44:03 +00:00
class-file-upload-upgrader.php
Docs: Improve inline comments per the documentation standards.
2020-01-29 00:45:18 +00:00
class-ftp-pure.php
Docs: Update URLs in some @link tags and switch them to HTTPS.
2019-11-01 14:57:02 +00:00
class-ftp-sockets.php
Docs: Update URLs in some @link tags and switch them to HTTPS.
2019-11-01 14:57:02 +00:00
class-ftp.php
General: Continuing to work towards a passing PHP Compatibility scan.
2020-06-03 17:40:12 +00:00
class-language-pack-upgrader-skin.php
Code Modernization: Fix parameter name mismatches for parent/child classes in WP_Upgrader_Skin::error().
2021-09-09 13:59:56 +00:00
class-language-pack-upgrader.php
Docs: Add missing @return tag to Language_Pack_Upgrader::check_package().
2020-10-05 13:44:11 +00:00
class-pclzip.php
Filesystem API: Make sure to only call fread() on non-empty files in PclZip::privAddFile().
2021-08-29 01:33:58 +00:00
class-plugin-installer-skin.php
I18N: Combine escaping and translation functions.
2021-05-19 18:10:59 +00:00
class-plugin-upgrader-skin.php
Text Changes: Unify various "Back to..." vs. "Return to..." vs. "Go to..." strings.
2020-11-09 10:53:10 +00:00
class-plugin-upgrader.php
Upgrade/install: Revert upgrader rollback features.
2021-12-10 00:06:04 +00:00
class-theme-installer-skin.php
Administration: Replace "Current theme" with "Active theme" in user facing strings.
2022-01-15 08:44:03 +00:00
class-theme-upgrader-skin.php
Text Changes: Unify various "Back to..." vs. "Return to..." vs. "Go to..." strings.
2020-11-09 10:53:10 +00:00
class-theme-upgrader.php
Administration: Replace "Current theme" with "Active theme" in user facing strings.
2022-01-15 08:44:03 +00:00
class-walker-category-checklist.php
Code Modernization: Fix reserved keyword and parameter name mismatches for parent/child classes in Walker::end_el().
2021-09-09 13:03:55 +00:00
class-walker-nav-menu-checklist.php
Code Modernization: Fix last parameter name mismatches for parent/child classes in Walker::start_el().
2021-09-09 12:39:59 +00:00
class-walker-nav-menu-edit.php
Administration: Replace "Current theme" with "Active theme" in user facing strings.
2022-01-15 08:44:03 +00:00
class-wp-ajax-upgrader-skin.php
Code Modernization: Fix reserved keyword and parameter name mismatches for parent/child classes in WP_Upgrader_Skin::feedback().
2021-09-09 13:48:56 +00:00
class-wp-application-passwords-list-table.php
Application Passwords: Allow enter key to submit profile form.
2021-06-07 23:49:58 +00:00
class-wp-automatic-updater.php
Upgrade/Install: Fix parameter count in error call when an automatic core upgrade fails.
2022-01-07 17:55:01 +00:00
class-wp-comments-list-table.php
Docs: Corrections relating to types used in inline documentation for comment ID and site ID proprties.
2021-11-18 13:57:01 +00:00
class-wp-community-events.php
Coding Standards: Use static closures when not using $this.
2021-08-26 12:59:02 +00:00
class-wp-debug-data.php
Site Health: Add the constant WP_ENVIRONMENT_TYPE for debug data.
2021-11-05 21:05:00 +00:00
class-wp-filesystem-base.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
class-wp-filesystem-direct.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
class-wp-filesystem-ftpext.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
class-wp-filesystem-ftpsockets.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
class-wp-filesystem-ssh2.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
class-wp-importer.php
Coding Standards: Remove unnecessary unset() calls in WP_Importer methods.
2021-04-08 11:12:08 +00:00
class-wp-internal-pointers.php
External Libraries: Further fix jQuery deprecations in WordPress core.
2021-11-30 17:18:01 +00:00
class-wp-links-list-table.php
Code Modernization: Fix parameter name mismatches for parent/child classes in WP_List_Table::handle_row_actions().
2021-09-07 19:24:53 +00:00
class-wp-list-table-compat.php
Docs: Add missing descriptions for _WP_List_Table_Compat methods.
2020-11-14 16:54:08 +00:00
class-wp-list-table.php
Administration: Enable first and last page buttons in WP_List_Table::pagination().
2021-10-01 18:39:58 +00:00
class-wp-media-list-table.php
I18N: Add context for some Media Library filter strings:
2021-10-12 16:44:01 +00:00
class-wp-ms-sites-list-table.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
class-wp-ms-themes-list-table.php
Accessibility: Administration: Improve aria-label on network admin Themes screen.
2021-09-10 14:49:00 +00:00
class-wp-ms-users-list-table.php
Coding Standards: Rename the $val variable to $site for clarity in WP_MS_Users_List_Table::column_blogs().
2022-01-16 08:40:00 +00:00
class-wp-plugin-install-list-table.php
Docs: Document some more common names for dynamic hooks and standardise the phrasing used.
2021-09-21 18:21:00 +00:00
class-wp-plugins-list-table.php
Docs: Update documentation for the $plugin_data parameter of various hooks:
2021-11-20 02:23:02 +00:00
class-wp-post-comments-list-table.php
Coding Standards: Upgrade WPCS to 1.0.0
2018-08-17 01:51:36 +00:00
class-wp-posts-list-table.php
Docs: Remove instances of the “eg.” abbreviation in favor of “example” or “for example”.
2021-11-19 14:44:01 +00:00
class-wp-privacy-data-export-requests-list-table.php
Coding Standards: Fix WPCS issues in [49258].
2020-10-20 21:20:07 +00:00
class-wp-privacy-data-removal-requests-list-table.php
Coding Standards: Fix WPCS issues in [49258].
2020-10-20 21:20:07 +00:00
class-wp-privacy-policy-content.php
Docs: Document the globals used in some Privacy API methods.
2021-11-24 11:41:03 +00:00
class-wp-privacy-requests-table.php
Docs: Document the globals used in some Privacy API methods.
2021-11-24 11:41:03 +00:00
class-wp-screen.php
Docs: Remove inaccurate part of the screen_settings filter description.
2021-11-27 02:07:00 +00:00
class-wp-site-health-auto-updates.php
Coding Standards: Add public visibility to methods in src directory.
2021-10-18 17:52:58 +00:00
class-wp-site-health.php
Administration: Replace "Current theme" with "Active theme" in user facing strings.
2022-01-15 08:44:03 +00:00
class-wp-site-icon.php
Media: Avoid suppressing errors when using getimagesize().
2021-02-02 16:53:04 +00:00
class-wp-terms-list-table.php
Taxonomy: Allow get_*_*_link() and edit_term_link() functions to accept a term ID, WP_Term, or term object.
2021-11-16 14:57:02 +00:00
class-wp-theme-install-list-table.php
Docs: Various corrections and improvements relating to types used in inline documentation.
2021-11-18 13:50:05 +00:00
class-wp-themes-list-table.php
Administration: Replace "Current theme" with "Active theme" in user facing strings.
2022-01-15 08:44:03 +00:00
class-wp-upgrader-skin.php
Code Modernization: Fix parameter name mismatches for parent/child classes in WP_Upgrader_Skin::error().
2021-09-09 13:59:56 +00:00
class-wp-upgrader-skins.php
Docs: Add missing @deprecated tags in the file docblock of some deprecated files.
2019-10-08 17:19:04 +00:00
class-wp-upgrader.php
Upgrade/install: Revert upgrader rollback features.
2021-12-10 00:06:04 +00:00
class-wp-users-list-table.php
Coding Standards: Use strict comparison in wp-admin/includes/class-wp-users-list-table.php.
2022-01-15 20:49:06 +00:00
comment.php
Coding Standards: Use strict comparison in wp-admin/includes/comment.php.
2021-04-06 13:45:09 +00:00
continents-cities.php
I18N: Update list of continents and cities for the timezone selection.
2021-03-19 15:42:04 +00:00
credits.php
Help/About: Don't output empty <span> tags on Credits screen.
2021-10-19 23:09:00 +00:00
dashboard.php
Administration: Refresh the Dashboard Welcome panel.
2022-01-04 19:13:02 +00:00
deprecated.php
Administration: Add "File" to Theme/Plugin Editor menu names and relocate "Plugin File Editor" to Tools for block themes.
2021-12-21 20:06:02 +00:00
edit-tag-messages.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
export.php
Coding Standards: Simplify the check for parent terms in export_wp().
2021-04-11 13:44:13 +00:00
file.php
Upgrade/Install: Check if the disk_free_space() function exists before calling it.
2022-01-17 11:41:03 +00:00
image-edit.php
Docs: Correct description for the $image parameter of the wp_save_image_file filter.
2021-07-02 07:11:58 +00:00
image.php
Build/Test Tools: Update PHPCompatibilityWP to version 2.1.3.
2021-12-31 13:55:03 +00:00
import.php
Docs: Corrections and improvements to types used in various docblocks.
2021-01-05 17:16:11 +00:00
list-table.php
Docs: Promote many bool types to true or false where only that value is used.
2021-01-03 22:04:04 +00:00
media.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
menu.php
Coding Standards: Use strict comparison for count() calls.
2020-05-23 11:38:08 +00:00
meta-boxes.php
External Libraries: Further fix jQuery deprecations in WordPress core.
2021-11-30 17:18:01 +00:00
misc.php
Administration: Add "File" to Theme/Plugin Editor menu names and relocate "Plugin File Editor" to Tools for block themes.
2021-12-21 20:06:02 +00:00
ms-admin-filters.php
Docs: Improve comments in some wp-admin files per the documentation standards.
2020-01-29 00:35:08 +00:00
ms-deprecated.php
I18N: Capitalize translator comments consistently, add trailing punctuation.
2019-09-03 00:41:05 +00:00
ms.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
nav-menu.php
General: Avoid unnecessary calls to update_user_option().
2021-05-24 19:59:57 +00:00
network.php
Admin/UI-Copy: reword some "we" usages.
2021-11-02 17:37:57 +00:00
noop.php
Code Modernization: Remove conditional use of PHP realpath().
2019-09-20 20:46:56 +00:00
options.php
External Libraries: Further fix jQuery deprecations in WordPress core.
2021-11-30 17:18:01 +00:00
plugin-install.php
Docs: Miscellaneous inline documentation improvements.
2021-12-29 17:28:00 +00:00
plugin.php
Administration: Fix an erroneous translators comment after changeset [52569].
2022-01-12 23:45:01 +00:00
post.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
privacy-tools.php
Coding Standards: Fix indentation and remove ignore annotation in wp_privacy_send_personal_data_export_email().
2021-08-26 14:05:58 +00:00
revision.php
Docs: Various inline documentation corrections and improvements.
2021-12-07 12:20:02 +00:00
schema.php
Docs: Remove instances of the “eg.” abbreviation in favor of “example” or “for example”.
2021-11-19 14:44:01 +00:00
screen.php
Coding Standards: Use strict comparison in wp-admin/includes/screen.php.
2021-05-09 20:27:02 +00:00
taxonomy.php
Docs: Various docblock corrections and improvements.
2021-11-23 21:37:01 +00:00
template.php
External Libraries: Further fix jQuery deprecations in WordPress core.
2021-11-30 17:18:01 +00:00
theme-install.php
Coding Standards: Add a space before / character in some self-closing HTML tags.
2021-03-20 18:30:08 +00:00
theme.php
Administration: Replace "Current theme" with "Active theme" in user facing strings.
2022-01-15 08:44:03 +00:00
translation-install.php
Docs: Promote many bool types to true or false where only that value is used.
2021-01-03 22:04:04 +00:00
update-core.php
Upgrade/Install: Check if the disk_free_space() function exists before calling it.
2022-01-17 11:41:03 +00:00
update.php
Docs: Update documentation for the $plugin_data parameter of various hooks:
2021-11-20 02:23:02 +00:00
upgrade.php
Upgrade/Install: Avoid using unserialize() unnecessarily.
2022-01-06 17:07:03 +00:00
user.php
External Libraries: Further fix jQuery deprecations in WordPress core.
2021-11-30 17:18:01 +00:00
widgets.php
Docs: Capitalize "ID", when referring to a widget ID or sidebar ID, in a more consistent way.
2021-12-13 10:21:07 +00:00