CDB, short for "constant database", refers to a very fast and highly
reliable database system which uses a simple file with key value pairs. This
library wraps the CDB functionality exposed in PHP via the dba_*
functions.
In cases where dba_*
functions are not present or are not compiled with CDB
support, a pure-PHP implementation is provided for falling back.
Additional documentation about the library can be found on MediaWiki.org.
// Reading a CDB file
$cdb = \Cdb\Reader::open( 'db.cdb' );
$foo = $cdb->get( 'somekey' );
// Writing to a CDB file
$cdb = \Cdb\Writer::open( 'anotherdb.cdb' );
$cdb->set( 'somekey', $foo );
composer install --prefer-dist
composer test
This library was first introduced in MediaWiki 1.16 (r52203). It was split out of the MediaWiki codebase and published as an independent library during the MediaWiki 1.25 development cycle.