Merge pull request #4 from cybex-gmbh/fix/backtrace-null-parameter

Fix passing a null parameter to debug_backtrace

Author: gael-connan-cybex

config/query-tracer.php

@@ -124,14 +124,14 @@
         | Backtrace Frame Limit
         |--------------------------------------------------------------------------
         |
-        | Setting this limit to any non-null value greater than 0 will limit the
-        | amount of stack frames to parse. Depending on the application and your
-        | restriction settings, a good value might be between 8 and 25. If in
-        | doubt, leave this setting unlimited as long as you don't experience
-        | serious performance or memory consumption issues.
+        | Setting this limit to any value greater than 0 will limit the amount
+        | of stack frames to parse. Depending on the application and your
+        | restriction settings, a good value might be between 8 and 25.
+        | If in doubt, leave this setting unlimited as long as you do
+        | not experience performance or memory consumption issues.
         |
         */
-        'limit' => null,
+        'limit' => 0,
 
         /*
         |--------------------------------------------------------------------------

src/Classes/StackTrace.php

@@ -90,7 +90,7 @@ public function getLastMatchingStackFrame(): ?ArrayIterator
         $excludeContaining = (array)config('query-tracer.backtrace.excludeFilesContaining');
 
         $fullBacktrace = debug_backtrace(
-            config('query-tracer.backtrace.withArgs') ? 1 : DEBUG_BACKTRACE_IGNORE_ARGS,
+            DEBUG_BACKTRACE_PROVIDE_OBJECT | (config('query-tracer.backtrace.withArgs') ? false : DEBUG_BACKTRACE_IGNORE_ARGS),
             config('query-tracer.backtrace.limit')
         );
 
@@ -135,7 +135,7 @@ protected function getCall(array $stackFrame, bool $withClass = true): string
 
         $args = '';
 
-        if (is_array($stackFrame['args']) && count($stackFrame['args'])) {
+        if (is_array($stackFrame['args'] ?? false) && count($stackFrame['args'])) {
             $args = app('trace.formatter.argument')->formatStackFrameArguments(array_values($stackFrame['args']));
         }