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Miscellaneous settings: $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
Other settings: Alphabetical | By function


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 are treated as false for backwards compatibility.
  • any other string is treated as a path to external diff executable.

This setting replaces $wgUseExternalDiffEngine.