Install a theme package.
Plugin_Upgrader::install
Install a plugin package.
Plugin_Upgrader::upgrade
Upgrade a plugin.
Plugin_Upgrader::bulk_upgrade
Bulk upgrade several plugins at once.
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Language_Pack_Upgrader::async_upgrade
Asynchronously upgrades language packs after other upgrades have been made.
Language_Pack_Upgrader::upgrade_strings
Initialize the upgrade strings.
Language_Pack_Upgrader::upgrade
Upgrade a language pack.
Language_Pack_Upgrader::bulk_upgrade
Bulk upgrade language packs.
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Language_Pack_Upgrader::check_package
Check the package source to make sure there are .mo and .po files.
Language_Pack_Upgrader::get_name_for_update
Get the name of an item being updated.
Core_Upgrader::check_files
Compare the disk file checksums against the expected checksums.
Core_Upgrader::should_update_to_version
Determines if this WordPress Core version should update to an offered version or not.
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WP_Date_Query::build_value
Builds and validates a value string based on the comparison operator.
WP_Date_Query::build_mysql_datetime
Builds a MySQL format date/time based on some query parameters.
WP_Date_Query::build_time_query
Builds a query string for comparing time values (hour, minute, second).