Test if themes are outdated, or unnecessary.
WP_Site_Health::get_test_php_version
Test if the supplied PHP version is supported.
WP_Site_Health::test_php_extension_availability
Check if the passed extension or function are available.
WP_Site_Health::get_test_php_extensions
Test if required PHP modules are installed on the host.
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WP_Site_Health::get_test_sql_server
Test if the SQL server is up to date.
WP_Site_Health::get_test_utf8mb4_support
Test if the database server is capable of using utf8mb4.
WP_Site_Health_Auto_Updates::test_check_wp_filesystem_method
Check if we can access files without providing credentials.
WP_Site_Health::get_test_dotorg_communication
Test if the site can communicate with WordPress.org.
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WP_Site_Health_Auto_Updates::test_all_files_writable
Check if core files are writable by the web user/group.
WP_Site_Health::get_test_is_in_debug_mode
Test if debug information is enabled.
WP_Site_Health_Auto_Updates::test_accepts_dev_updates
Check if the install is using a development branch and can use nightly packages.
WP_Site_Health::get_test_https_status
Test if your site is serving content over HTTPS.
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WP_Site_Health_Auto_Updates::test_accepts_minor_updates
Check if the site supports automatic minor updates.
WP_Site_Health::get_test_ssl_support
Check if the HTTP API can handle SSL/TLS requests.
WP_Site_Health::__construct
WP_Site_Health constructor.