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MWDebug.php
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1 <?php
24 
33 class MWDebug {
39  protected static $log = [];
40 
46  protected static $debug = [];
47 
53  protected static $query = [];
54 
60  protected static $enabled = false;
61 
68  protected static $deprecationWarnings = [];
69 
76  public static function init() {
77  self::$enabled = true;
78  }
79 
85  public static function deinit() {
86  self::$enabled = false;
87  }
88 
96  public static function addModules( OutputPage $out ) {
97  if ( self::$enabled ) {
98  $out->addModules( 'mediawiki.debug' );
99  }
100  }
101 
108  public static function log( $str ) {
109  if ( !self::$enabled ) {
110  return;
111  }
112  if ( !is_string( $str ) ) {
113  $str = print_r( $str, true );
114  }
115  self::$log[] = [
116  'msg' => htmlspecialchars( $str ),
117  'type' => 'log',
118  'caller' => wfGetCaller(),
119  ];
120  }
121 
127  public static function getLog() {
128  return self::$log;
129  }
130 
135  public static function clearLog() {
136  self::$log = [];
137  self::$deprecationWarnings = [];
138  }
139 
151  public static function warning( $msg, $callerOffset = 1, $level = E_USER_NOTICE, $log = 'auto' ) {
152  global $wgDevelopmentWarnings;
153 
154  if ( $log === 'auto' && !$wgDevelopmentWarnings ) {
155  $log = 'debug';
156  }
157 
158  if ( $log === 'debug' ) {
159  $level = false;
160  }
161 
162  $callerDescription = self::getCallerDescription( $callerOffset );
163 
164  self::sendMessage( $msg, $callerDescription, 'warning', $level );
165 
166  if ( self::$enabled ) {
167  self::$log[] = [
168  'msg' => htmlspecialchars( $msg ),
169  'type' => 'warn',
170  'caller' => $callerDescription['func'],
171  ];
172  }
173  }
174 
193  public static function deprecated( $function, $version = false,
194  $component = false, $callerOffset = 2
195  ) {
196  $callerDescription = self::getCallerDescription( $callerOffset );
197  $callerFunc = $callerDescription['func'];
198 
199  $sendToLog = true;
200 
201  // Check to see if there already was a warning about this function
202  if ( isset( self::$deprecationWarnings[$function][$callerFunc] ) ) {
203  return;
204  } elseif ( isset( self::$deprecationWarnings[$function] ) ) {
205  if ( self::$enabled ) {
206  $sendToLog = false;
207  } else {
208  return;
209  }
210  }
211 
212  self::$deprecationWarnings[$function][$callerFunc] = true;
213 
214  if ( $version ) {
216  if ( $wgDeprecationReleaseLimit && $component === false ) {
217  # Strip -* off the end of $version so that branches can use the
218  # format #.##-branchname to avoid issues if the branch is merged into
219  # a version of MediaWiki later than what it was branched from
220  $comparableVersion = preg_replace( '/-.*$/', '', $version );
221 
222  # If the comparableVersion is larger than our release limit then
223  # skip the warning message for the deprecation
224  if ( version_compare( $wgDeprecationReleaseLimit, $comparableVersion, '<' ) ) {
225  $sendToLog = false;
226  }
227  }
228 
229  $component = $component === false ? 'MediaWiki' : $component;
230  $msg = "Use of $function was deprecated in $component $version.";
231  } else {
232  $msg = "Use of $function is deprecated.";
233  }
234 
235  if ( $sendToLog ) {
236  global $wgDevelopmentWarnings; // we could have a more specific $wgDeprecationWarnings setting.
237  self::sendMessage(
238  $msg,
239  $callerDescription,
240  'deprecated',
241  $wgDevelopmentWarnings ? E_USER_DEPRECATED : false
242  );
243  }
244 
245  if ( self::$enabled ) {
246  $logMsg = htmlspecialchars( $msg ) .
247  Html::rawElement( 'div', [ 'class' => 'mw-debug-backtrace' ],
248  Html::element( 'span', [], 'Backtrace:' ) . wfBacktrace()
249  );
250 
251  self::$log[] = [
252  'msg' => $logMsg,
253  'type' => 'deprecated',
254  'caller' => $callerFunc,
255  ];
256  }
257  }
258 
266  private static function getCallerDescription( $callerOffset ) {
267  $callers = wfDebugBacktrace();
268 
269  if ( isset( $callers[$callerOffset] ) ) {
270  $callerfile = $callers[$callerOffset];
271  if ( isset( $callerfile['file'] ) && isset( $callerfile['line'] ) ) {
272  $file = $callerfile['file'] . ' at line ' . $callerfile['line'];
273  } else {
274  $file = '(internal function)';
275  }
276  } else {
277  $file = '(unknown location)';
278  }
279 
280  if ( isset( $callers[$callerOffset + 1] ) ) {
281  $callerfunc = $callers[$callerOffset + 1];
282  $func = '';
283  if ( isset( $callerfunc['class'] ) ) {
284  $func .= $callerfunc['class'] . '::';
285  }
286  if ( isset( $callerfunc['function'] ) ) {
287  $func .= $callerfunc['function'];
288  }
289  } else {
290  $func = 'unknown';
291  }
292 
293  return [ 'file' => $file, 'func' => $func ];
294  }
295 
305  private static function sendMessage( $msg, $caller, $group, $level ) {
306  $msg .= ' [Called from ' . $caller['func'] . ' in ' . $caller['file'] . ']';
307 
308  if ( $level !== false ) {
309  trigger_error( $msg, $level );
310  }
311 
312  wfDebugLog( $group, $msg, 'private' );
313  }
314 
323  public static function debugMsg( $str, $context = [] ) {
325 
326  if ( self::$enabled || $wgDebugComments || $wgShowDebug ) {
327  if ( $context ) {
328  $prefix = '';
329  if ( isset( $context['prefix'] ) ) {
330  $prefix = $context['prefix'];
331  } elseif ( isset( $context['channel'] ) && $context['channel'] !== 'wfDebug' ) {
332  $prefix = "[{$context['channel']}] ";
333  }
334  if ( isset( $context['seconds_elapsed'] ) && isset( $context['memory_used'] ) ) {
335  $prefix .= "{$context['seconds_elapsed']} {$context['memory_used']} ";
336  }
337  $str = LegacyLogger::interpolate( $str, $context );
338  $str = $prefix . $str;
339  }
340  self::$debug[] = rtrim( UtfNormal\Validator::cleanUp( $str ) );
341  }
342  }
343 
354  public static function query( $sql, $function, $isMaster, $runTime ) {
355  if ( !self::$enabled ) {
356  return false;
357  }
358 
359  // Replace invalid UTF-8 chars with a square UTF-8 character
360  // This prevents json_encode from erroring out due to binary SQL data
361  $sql = preg_replace(
362  '/(
363  [\xC0-\xC1] # Invalid UTF-8 Bytes
364  | [\xF5-\xFF] # Invalid UTF-8 Bytes
365  | \xE0[\x80-\x9F] # Overlong encoding of prior code point
366  | \xF0[\x80-\x8F] # Overlong encoding of prior code point
367  | [\xC2-\xDF](?![\x80-\xBF]) # Invalid UTF-8 Sequence Start
368  | [\xE0-\xEF](?![\x80-\xBF]{2}) # Invalid UTF-8 Sequence Start
369  | [\xF0-\xF4](?![\x80-\xBF]{3}) # Invalid UTF-8 Sequence Start
370  | (?<=[\x0-\x7F\xF5-\xFF])[\x80-\xBF] # Invalid UTF-8 Sequence Middle
371  | (?<![\xC2-\xDF]|[\xE0-\xEF]|[\xE0-\xEF][\x80-\xBF]|[\xF0-\xF4]
372  | [\xF0-\xF4][\x80-\xBF]|[\xF0-\xF4][\x80-\xBF]{2})[\x80-\xBF] # Overlong Sequence
373  | (?<=[\xE0-\xEF])[\x80-\xBF](?![\x80-\xBF]) # Short 3 byte sequence
374  | (?<=[\xF0-\xF4])[\x80-\xBF](?![\x80-\xBF]{2}) # Short 4 byte sequence
375  | (?<=[\xF0-\xF4][\x80-\xBF])[\x80-\xBF](?![\x80-\xBF]) # Short 4 byte sequence (2)
376  )/x',
377  '■',
378  $sql
379  );
380 
381  // last check for invalid utf8
382  $sql = UtfNormal\Validator::cleanUp( $sql );
383 
384  self::$query[] = [
385  'sql' => $sql,
386  'function' => $function,
387  'master' => (bool)$isMaster,
388  'time' => $runTime,
389  ];
390 
391  return true;
392  }
393 
400  protected static function getFilesIncluded( IContextSource $context ) {
401  $files = get_included_files();
402  $fileList = [];
403  foreach ( $files as $file ) {
404  $size = filesize( $file );
405  $fileList[] = [
406  'name' => $file,
407  'size' => $context->getLanguage()->formatSize( $size ),
408  ];
409  }
410 
411  return $fileList;
412  }
413 
421  public static function getDebugHTML( IContextSource $context ) {
422  global $wgDebugComments;
423 
424  $html = '';
425 
426  if ( self::$enabled ) {
427  self::log( 'MWDebug output complete' );
428  $debugInfo = self::getDebugInfo( $context );
429 
430  // Cannot use OutputPage::addJsConfigVars because those are already outputted
431  // by the time this method is called.
433  ResourceLoader::makeConfigSetScript( [ 'debugInfo' => $debugInfo ] ),
434  $context->getOutput()->getCSPNonce()
435  );
436  }
437 
438  if ( $wgDebugComments ) {
439  $html .= "<!-- Debug output:\n" .
440  htmlspecialchars( implode( "\n", self::$debug ), ENT_NOQUOTES ) .
441  "\n\n-->";
442  }
443 
444  return $html;
445  }
446 
455  public static function getHTMLDebugLog() {
456  global $wgShowDebug;
457 
458  if ( !$wgShowDebug ) {
459  return '';
460  }
461 
462  $ret = "\n<hr />\n<strong>Debug data:</strong><ul id=\"mw-debug-html\">\n";
463 
464  foreach ( self::$debug as $line ) {
465  $display = nl2br( htmlspecialchars( trim( $line ) ) );
466 
467  $ret .= "<li><code>$display</code></li>\n";
468  }
469 
470  $ret .= '</ul>' . "\n";
471 
472  return $ret;
473  }
474 
482  if ( !self::$enabled ) {
483  return;
484  }
485 
486  // output errors as debug info, when display_errors is on
487  // this is necessary for all non html output of the api, because that clears all errors first
488  $obContents = ob_get_contents();
489  if ( $obContents ) {
490  $obContentArray = explode( '<br />', $obContents );
491  foreach ( $obContentArray as $obContent ) {
492  if ( trim( $obContent ) ) {
493  self::debugMsg( Sanitizer::stripAllTags( $obContent ) );
494  }
495  }
496  }
497 
498  self::log( 'MWDebug output complete' );
499  $debugInfo = self::getDebugInfo( $context );
500 
501  ApiResult::setIndexedTagName( $debugInfo, 'debuginfo' );
502  ApiResult::setIndexedTagName( $debugInfo['log'], 'line' );
503  ApiResult::setIndexedTagName( $debugInfo['debugLog'], 'msg' );
504  ApiResult::setIndexedTagName( $debugInfo['queries'], 'query' );
505  ApiResult::setIndexedTagName( $debugInfo['includes'], 'queries' );
506  $result->addValue( null, 'debuginfo', $debugInfo );
507  }
508 
515  public static function getDebugInfo( IContextSource $context ) {
516  if ( !self::$enabled ) {
517  return [];
518  }
519 
520  global $wgVersion;
521  $request = $context->getRequest();
522 
523  // HHVM's reported memory usage from memory_get_peak_usage()
524  // is not useful when passing false, but we continue passing
525  // false for consistency of historical data in zend.
526  // see: https://github.com/facebook/hhvm/issues/2257#issuecomment-39362246
527  $realMemoryUsage = wfIsHHVM();
528 
529  $branch = GitInfo::currentBranch();
530  if ( GitInfo::isSHA1( $branch ) ) {
531  // If it's a detached HEAD, the SHA1 will already be
532  // included in the MW version, so don't show it.
533  $branch = false;
534  }
535 
536  return [
537  'mwVersion' => $wgVersion,
538  'phpEngine' => wfIsHHVM() ? 'HHVM' : 'PHP',
539  'phpVersion' => wfIsHHVM() ? HHVM_VERSION : PHP_VERSION,
540  'gitRevision' => GitInfo::headSHA1(),
541  'gitBranch' => $branch,
542  'gitViewUrl' => GitInfo::headViewUrl(),
543  'time' => $request->getElapsedTime(),
544  'log' => self::$log,
545  'debugLog' => self::$debug,
546  'queries' => self::$query,
547  'request' => [
548  'method' => $request->getMethod(),
549  'url' => $request->getRequestURL(),
550  'headers' => $request->getAllHeaders(),
551  'params' => $request->getValues(),
552  ],
553  'memory' => $context->getLanguage()->formatSize( memory_get_usage( $realMemoryUsage ) ),
554  'memoryPeak' => $context->getLanguage()->formatSize( memory_get_peak_usage( $realMemoryUsage ) ),
555  'includes' => self::getFilesIncluded( $context ),
556  ];
557  }
558 }
static getLog()
Returns internal log array.
Definition: MWDebug.php:127
MediaWiki Logger LegacyLogger
Definition: logger.txt:54
null means default in associative array with keys and values unescaped Should be merged with default with a value of false meaning to suppress the attribute in associative array with keys and values unescaped noclasses just before the function returns a value If you return an< a > element with HTML attributes $attribs and contents $html will be returned If you return $ret will be returned and may include noclasses & $html
Definition: hooks.txt:1982
null for the local wiki Added should default to null in handler for backwards compatibility add a value to it if you want to add a cookie that have to vary cache options can modify $query
Definition: hooks.txt:1585
static element( $element, $attribs=[], $contents='')
Identical to rawElement(), but HTML-escapes $contents (like Xml::element()).
Definition: Html.php:232
$wgVersion
MediaWiki version number.
wfIsHHVM()
Check if we are running under HHVM.
static getFilesIncluded(IContextSource $context)
Returns a list of files included, along with their size.
Definition: MWDebug.php:400
null means default in associative array with keys and values unescaped Should be merged with default with a value of false meaning to suppress the attribute in associative array with keys and values unescaped noclasses & $ret
Definition: hooks.txt:1982
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
addModules( $modules)
Load one or more ResourceLoader modules on this page.
Definition: OutputPage.php:547
if(PHP_SAPI !='cli-server') if(!isset( $_SERVER['SCRIPT_FILENAME'])) $file
Definition: router.php:42
static getCallerDescription( $callerOffset)
Get an array describing the calling function at a specified offset.
Definition: MWDebug.php:266
static rawElement( $element, $attribs=[], $contents='')
Returns an HTML element in a string.
Definition: Html.php:210
$wgDebugComments
Send debug data to an HTML comment in the output.
static debugMsg( $str, $context=[])
This is a method to pass messages from wfDebug to the pretty debugger.
Definition: MWDebug.php:323
static $deprecationWarnings
Array of functions that have already been warned, formatted function-caller to prevent a buttload of ...
Definition: MWDebug.php:68
static makeConfigSetScript(array $configuration)
Returns JS code which will set the MediaWiki configuration array to the given value.
addValue( $path, $name, $value, $flags=0)
Add value to the output data at the given path.
Definition: ApiResult.php:405
static isSHA1( $str)
Check if a string looks like a hex encoded SHA1 hash.
Definition: GitInfo.php:158
$wgDeprecationReleaseLimit
Release limitation to wfDeprecated warnings, if set to a release number development warnings will not...
static setIndexedTagName(array &$arr, $tag)
Set the tag name for numeric-keyed values in XML format.
Definition: ApiResult.php:616
static getHTMLDebugLog()
Generate debug log in HTML for displaying at the bottom of the main content area. ...
Definition: MWDebug.php:455
static headSHA1()
Definition: GitInfo.php:392
The index of the header message $result[1]=The index of the body text message $result[2 through n]=Parameters passed to body text message. Please note the header message cannot receive/use parameters. 'ImportHandleLogItemXMLTag':When parsing a XML tag in a log item. Return false to stop further processing of the tag $reader:XMLReader object $logInfo:Array of information 'ImportHandlePageXMLTag':When parsing a XML tag in a page. Return false to stop further processing of the tag $reader:XMLReader object & $pageInfo:Array of information 'ImportHandleRevisionXMLTag':When parsing a XML tag in a page revision. Return false to stop further processing of the tag $reader:XMLReader object $pageInfo:Array of page information $revisionInfo:Array of revision information 'ImportHandleToplevelXMLTag':When parsing a top level XML tag. Return false to stop further processing of the tag $reader:XMLReader object 'ImportHandleUnknownUser':When a user doesn 't exist locally, this hook is called to give extensions an opportunity to auto-create it. If the auto-creation is successful, return false. $name:User name 'ImportHandleUploadXMLTag':When parsing a XML tag in a file upload. Return false to stop further processing of the tag $reader:XMLReader object $revisionInfo:Array of information 'ImportLogInterwikiLink':Hook to change the interwiki link used in log entries and edit summaries for transwiki imports. & $fullInterwikiPrefix:Interwiki prefix, may contain colons. & $pageTitle:String that contains page title. 'ImportSources':Called when reading from the $wgImportSources configuration variable. Can be used to lazy-load the import sources list. & $importSources:The value of $wgImportSources. Modify as necessary. See the comment in DefaultSettings.php for the detail of how to structure this array. 'InfoAction':When building information to display on the action=info page. $context:IContextSource object & $pageInfo:Array of information 'InitializeArticleMaybeRedirect':MediaWiki check to see if title is a redirect. & $title:Title object for the current page & $request:WebRequest & $ignoreRedirect:boolean to skip redirect check & $target:Title/string of redirect target & $article:Article object 'InternalParseBeforeLinks':during Parser 's internalParse method before links but after nowiki/noinclude/includeonly/onlyinclude and other processings. & $parser:Parser object & $text:string containing partially parsed text & $stripState:Parser 's internal StripState object 'InternalParseBeforeSanitize':during Parser 's internalParse method just before the parser removes unwanted/dangerous HTML tags and after nowiki/noinclude/includeonly/onlyinclude and other processings. Ideal for syntax-extensions after template/parser function execution which respect nowiki and HTML-comments. & $parser:Parser object & $text:string containing partially parsed text & $stripState:Parser 's internal StripState object 'InterwikiLoadPrefix':When resolving if a given prefix is an interwiki or not. Return true without providing an interwiki to continue interwiki search. $prefix:interwiki prefix we are looking for. & $iwData:output array describing the interwiki with keys iw_url, iw_local, iw_trans and optionally iw_api and iw_wikiid. 'InvalidateEmailComplete':Called after a user 's email has been invalidated successfully. $user:user(object) whose email is being invalidated 'IRCLineURL':When constructing the URL to use in an IRC notification. Callee may modify $url and $query, URL will be constructed as $url . $query & $url:URL to index.php & $query:Query string $rc:RecentChange object that triggered url generation 'IsFileCacheable':Override the result of Article::isFileCacheable()(if true) & $article:article(object) being checked 'IsTrustedProxy':Override the result of IP::isTrustedProxy() & $ip:IP being check & $result:Change this value to override the result of IP::isTrustedProxy() 'IsUploadAllowedFromUrl':Override the result of UploadFromUrl::isAllowedUrl() $url:URL used to upload from & $allowed:Boolean indicating if uploading is allowed for given URL 'isValidEmailAddr':Override the result of Sanitizer::validateEmail(), for instance to return false if the domain name doesn 't match your organization. $addr:The e-mail address entered by the user & $result:Set this and return false to override the internal checks 'isValidPassword':Override the result of User::isValidPassword() $password:The password entered by the user & $result:Set this and return false to override the internal checks $user:User the password is being validated for 'Language::getMessagesFileName':$code:The language code or the language we 're looking for a messages file for & $file:The messages file path, you can override this to change the location. 'LanguageGetNamespaces':Provide custom ordering for namespaces or remove namespaces. Do not use this hook to add namespaces. Use CanonicalNamespaces for that. & $namespaces:Array of namespaces indexed by their numbers 'LanguageGetTranslatedLanguageNames':Provide translated language names. & $names:array of language code=> language name $code:language of the preferred translations 'LanguageLinks':Manipulate a page 's language links. This is called in various places to allow extensions to define the effective language links for a page. $title:The page 's Title. & $links:Array with elements of the form "language:title" in the order that they will be output. & $linkFlags:Associative array mapping prefixed links to arrays of flags. Currently unused, but planned to provide support for marking individual language links in the UI, e.g. for featured articles. 'LanguageSelector':Hook to change the language selector available on a page. $out:The output page. $cssClassName:CSS class name of the language selector. 'LinkBegin':DEPRECATED since 1.28! Use HtmlPageLinkRendererBegin instead. Used when generating internal and interwiki links in Linker::link(), before processing starts. Return false to skip default processing and return $ret. See documentation for Linker::link() for details on the expected meanings of parameters. $skin:the Skin object $target:the Title that the link is pointing to & $html:the contents that the< a > tag should have(raw HTML) $result
Definition: hooks.txt:1980
$wgShowDebug
Display debug data at the bottom of the main content area.
this hook is for auditing only or null if authentication failed before getting that far or null if we can t even determine that When $user is not it can be in the form of< username >< more info > e g for bot passwords intended to be added to log contexts Fields it might only if the login was with a bot password it is not rendered in wiki pages or galleries in category pages allow injecting custom HTML after the section Any uses of the hook need to handle escaping see BaseTemplate::getToolbox and BaseTemplate::makeListItem for details on the format of individual items inside of this array or by returning and letting standard HTTP rendering take place modifiable or by returning false and taking over the output $out
Definition: hooks.txt:780
static stripAllTags( $html)
Take a fragment of (potentially invalid) HTML and return a version with any tags removed, encoded as plain text.
Definition: Sanitizer.php:1995
static $query
SQL statements of the database queries.
Definition: MWDebug.php:53
static warning( $msg, $callerOffset=1, $level=E_USER_NOTICE, $log='auto')
Adds a warning entry to the log.
Definition: MWDebug.php:151
static sendMessage( $msg, $caller, $group, $level)
Send a message to the debug log and optionally also trigger a PHP error, depending on the $level argu...
Definition: MWDebug.php:305
static $log
Log lines.
Definition: MWDebug.php:39
static $enabled
Is the debugger enabled?
Definition: MWDebug.php:60
this hook is for auditing only or null if authentication failed before getting that far or null if we can t even determine that When $user is not null
Definition: hooks.txt:780
static addModules(OutputPage $out)
Add ResourceLoader modules to the OutputPage object if debugging is enabled.
Definition: MWDebug.php:96
static getDebugInfo(IContextSource $context)
Returns the HTML to add to the page for the toolbar.
Definition: MWDebug.php:515
This class represents the result of the API operations.
Definition: ApiResult.php:35
wfGetCaller( $level=2)
Get the name of the function which called this function wfGetCaller( 1 ) is the function with the wfG...
static clearLog()
Clears internal log array and deprecation tracking.
Definition: MWDebug.php:135
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Definition: distributors.txt:9
static makeInlineScript( $script, $nonce=null)
Returns an HTML script tag that runs given JS code after startup and base modules.
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
static log( $str)
Adds a line to the log.
Definition: MWDebug.php:108
static appendDebugInfoToApiResult(IContextSource $context, ApiResult $result)
Append the debug info to given ApiResult.
Definition: MWDebug.php:481
static query( $sql, $function, $isMaster, $runTime)
Begins profiling on a database query.
Definition: MWDebug.php:354
wfDebugLog( $logGroup, $text, $dest='all', array $context=[])
Send a line to a supplementary debug log file, if configured, or main debug log if not...
$line
Definition: cdb.php:59
wfDebugBacktrace( $limit=0)
Safety wrapper for debug_backtrace().
static deinit()
Disable the debugger.
Definition: MWDebug.php:85
do that in ParserLimitReportFormat instead use this to modify the parameters of the image all existing parser cache entries will be invalid To avoid you ll need to handle that somehow(e.g. with the RejectParserCacheValue hook) because MediaWiki won 't do it for you. & $defaults also a ContextSource after deleting those rows but within the same transaction you ll probably need to make sure the header is varied on and they can depend only on the ResourceLoaderContext $context
Definition: hooks.txt:2633
static deprecated( $function, $version=false, $component=false, $callerOffset=2)
Show a warning that $function is deprecated.
Definition: MWDebug.php:193
static headViewUrl()
Definition: GitInfo.php:408
wfBacktrace( $raw=null)
Get a debug backtrace as a string.
$debug
Definition: mcc.php:31
static currentBranch()
Definition: GitInfo.php:400
static $debug
Debug messages from wfDebug().
Definition: MWDebug.php:46
do that in ParserLimitReportFormat instead use this to modify the parameters of the image all existing parser cache entries will be invalid To avoid you ll need to handle that somehow(e.g. with the RejectParserCacheValue hook) because MediaWiki won 't do it for you. & $defaults also a ContextSource after deleting those rows but within the same transaction you ll probably need to make sure the header is varied on $request
Definition: hooks.txt:2633
static init()
Enabled the debugger and load resource module.
Definition: MWDebug.php:76
$wgDevelopmentWarnings
If set to true MediaWiki will throw notices for some possible error conditions and for deprecated fun...
static getDebugHTML(IContextSource $context)
Returns the HTML to add to the page for the toolbar.
Definition: MWDebug.php:421