fix: the stack trace displayed when Exception handler runs out of memory is useless

Author: kenjis

system/Debug/Exceptions.php

@@ -68,6 +68,8 @@ class Exceptions
      */
     protected $response;
 
+    private ?Throwable $exceptionCaughtByExceptionHandler = null;
+
     /**
      * @param CLIRequest|IncomingRequest $request
      */
@@ -113,6 +115,8 @@ public function initialize()
      */
     public function exceptionHandler(Throwable $exception)
     {
+        $this->exceptionCaughtByExceptionHandler = $exception;
+
         [$statusCode, $exitCode] = $this->determineCodes($exception);
 
         if ($this->config->log === true && ! in_array($statusCode, $this->config->ignoreCodes, true)) {
@@ -191,6 +195,13 @@ public function shutdownHandler()
 
         ['type' => $type, 'message' => $message, 'file' => $file, 'line' => $line] = $error;
 
+        if ($this->exceptionCaughtByExceptionHandler) {
+            $message .= "\n【Previous Exception】\n"
+                . get_class($this->exceptionCaughtByExceptionHandler) . "\n"
+                . $this->exceptionCaughtByExceptionHandler->getMessage() . "\n"
+                . $this->exceptionCaughtByExceptionHandler->getTraceAsString();
+        }
+
         if (in_array($type, [E_ERROR, E_CORE_ERROR, E_COMPILE_ERROR, E_PARSE], true)) {
             $this->exceptionHandler(new ErrorException($message, 0, $type, $file, $line));
         }