Manual:$wgShowExceptionDetails
From MediaWiki.org
Debug/logging: $wgShowExceptionDetails | |
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If set to true, uncaught exceptions will print a complete stack trace to output. |
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Introduced in version: | 1.8.1 (r16944) |
Removed in version: | still in use |
Allowed values: | (boolean) |
Default value: | false |
Other settings: Alphabetical | By Function
Details [edit]
If set to true, uncaught exceptions will print a complete stack trace to output. This should only be used for debugging, as it may reveal private information in function parameters due to PHP's backtrace formatting.
With the default false, users are shown only an error message "Fatal exception of type MWException" with an alphanumeric code that a wiki sysadmin will have to search in the server logs to find the stack trace; without this information, it's impossible to help fix the error.