Content handlers and storage: $wgExternalDiffEngine
Name of the external diff engine to use.
Introduced in version:1.6.0 (r12987)
Removed in version:still in use
Allowed values:(string) or false
Default value:false


Name of the external diff engine to use, or false to use the internal engine.

The possible values are:

  • false - wikidiff2 if available, PHP implementation else.
  • 'wikidiff2' - Wikimedia's fast difference engine implemented as a PHP/HHVM module.
  • 'wikidiff' and 'wikidiff3' - treated as false for backwards compatibility.
  • any other string is treated as a path to external diff executable.

This setting replaces $wgUseExternalDiffEngine .

See alsoEdit