Manual:$wgTidyInternal

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Tidy: $wgTidyInternal
Controls the use of the PECL extension to use an inprocess tidy library instead of spawning a separate program.
Introduced in version:	1.4.2
Removed in version:	still in use
Allowed Values:	boolean
Default Value:	function_exists( 'tidy_load_config' )

Other settings: Alphabetical | By Function

[edit] Details

Normally you shouldn't need to override the setting except for debugging. To install, use 'pear install tidy' and add a line 'extension=tidy.so' to php.ini.