Fixes #6247: Logger and error handler are now using slightly less memory

framework/CHANGELOG.md

@@ -5,6 +5,7 @@ Yii Framework 2 Change Log
 -----------------------
 
 - Bug #6404: advanced application template `Alert` widget was generating duplicate IDs in case of multiple flashes (SDKiller)
+- Enh #6247: Logger and error handler are now using slightly less memory (stepanselyuk, samdark)
 - Enh #6434: Added `yii\behaviors\SluggableBehavior::immutable` to support keeping the generated slug unchanged (trntv)
 - Enh #6467: `ActiveForm` will scroll to the nearest visible element when the first error input is hidden (newartix)
 

framework/base/ErrorHandler.php

@@ -140,7 +140,7 @@ abstract class ErrorHandler extends Component
             $exception = new ErrorException($message, $code, $code, $file, $line);
 
             // in case error appeared in __toString method we can't throw any exception
-            $trace = debug_backtrace(0);
+            $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
             array_shift($trace);
             foreach ($trace as $frame) {
                 if ($frame['function'] == '__toString') {

framework/log/Logger.php

@@ -138,7 +138,7 @@ class Logger extends Component
         $traces = [];
         if ($this->traceLevel > 0) {
             $count = 0;
-            $ts = debug_backtrace();
+            $ts = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
             array_pop($ts); // remove the last trace since it would be the entry script, not very useful
             foreach ($ts as $trace) {
                 if (isset($trace['file'], $trace['line']) && strpos($trace['file'], YII2_PATH) !== 0) {