Fix skipping the first trace item when handling a PHP error

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## 4.3.2 under development
 
-- no changes in this release.
+- Bug #160: Fix skipping the first trace item when handling a PHP error (@vjik)
 
 ## 4.3.1 December 18, 2025
 

src/ErrorHandler.php

@@ -50,7 +50,7 @@
         private readonly LoggerInterface $logger,
         private readonly ThrowableRendererInterface $defaultRenderer,
         private readonly ?EventDispatcherInterface $eventDispatcher = null,
         private readonly int $exitShutdownHandlerDepth = 2
     ) {
     }
 
@@ -68,7 +68,7 @@
         $renderer ??= $this->defaultRenderer;
 
         try {
             $this->logger->error($t->getMessage(), ['throwable' => $t]);
             return $this->debug ? $renderer->renderVerbose($t, $request) : $renderer->render($t, $request);
         } catch (Throwable $t) {
             return new ErrorData((string) $t);
@@ -108,14 +108,14 @@
             return;
         }
 
         if ($this->memoryReserveSize > 0) {
             $this->memoryReserve = str_repeat('x', $this->memoryReserveSize);
         }
 
         $this->initializeOnce();
 
         // Handles throwable that isn't caught otherwise, echo output and exit.
         set_exception_handler(function (Throwable $t): void {
             if (!$this->enabled) {
                 return;
             }
@@ -129,13 +129,13 @@
                 return false;
             }
 
             if (!(error_reporting() & $severity)) {
                 // This error code is not included in error_reporting.
                 return true;
             }
 
             $backtrace = debug_backtrace(0);
-            array_shift($backtrace);
+            unset($backtrace[0]['function'], $backtrace[0]['class'], $backtrace[0]['type'], $backtrace[0]['args']);
             throw new ErrorException($message, $severity, $severity, $file, $line, null, $backtrace);
         });
 
@@ -147,7 +147,7 @@
      */
     public function unregister(): void
     {
         if (!$this->enabled) {
             return;
         }
 

tests/ErrorHandlerTest.php

@@ -111,7 +111,11 @@ public function testHandleErrorWithCatching(): void
         $this->assertInstanceOf(ErrorException::class, $exception);
         $this->assertFalse($exception::isFatalError($array));
         $this->assertNull($exception->getSolution());
-        $this->assertNotEmpty($exception->getBacktrace());
+
+        $backtrace = $exception->getBacktrace();
+        $this->assertNotEmpty($backtrace);
+        $this->assertSame(__FILE__, $backtrace[0]['file']);
+        $this->assertSame(['file', 'line'], array_keys($backtrace[0]));
 
         $this->errorHandler->unregister();
     }