gistfile1.txt

diff --git a/src/Client.php b/src/Client.php
index bfcee62..a441486 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -172,6 +172,10 @@ public function captureEvent(Event $event, ?EventHint $hint = null, ?Scope $scop
             return null;
         }
 
+        if ($this->options->getFastcgiFinishRequest() && function_exists('fastcgi_finish_request')) {
+            fastcgi_finish_request();
+        }
+
         try {
             /** @var Response $response */
             $response = $this->transport->send($event)->wait();
diff --git a/src/Options.php b/src/Options.php
index c784162..c23065e 100644
--- a/src/Options.php
+++ b/src/Options.php
@@ -878,6 +878,29 @@ public function setTracesSampler(?callable $sampler): void
         $this->options = $this->resolver->resolve($options);
     }
 
+    /**
+     * Returns whether to use fastcgi_finish_request() to flush the client response.
+     */
+    public function getFastcgiFinishRequest(): bool
+    {
+        return $this->options['fastcgi_finish_request'];
+    }
+
+    /**
+     * Sets a callback that will be invoked when we take the sampling decision for Transactions.
+     * Return a number between 0 and 1 to define the sample rate for the provided SamplingContext.
+     *
+     * @param ?callable $sampler The sampler
+     *
+     * @psalm-param null|callable(\Sentry\Tracing\SamplingContext): float $sampler
+     */
+    public function setFastcgiFinishRequest(bool $fastcgiFinishRequest): void
+    {
+        $options = array_merge($this->options, ['fastcgi_finish_request' => $fastcgiFinishRequest]);
+
+        $this->options = $this->resolver->resolve($options);
+    }
+
     /**
      * Configures the options of the client.
      *
@@ -931,6 +954,7 @@ private function configureOptions(OptionsResolver $resolver): void
             'capture_silenced_errors' => false,
             'max_request_body_size' => 'medium',
             'class_serializers' => [],
+            'fastcgi_finish_request' => false,
         ]);
 
         $resolver->setAllowedTypes('send_attempts', 'int');
@@ -969,6 +993,7 @@ private function configureOptions(OptionsResolver $resolver): void
         $resolver->setAllowedTypes('capture_silenced_errors', 'bool');
         $resolver->setAllowedTypes('max_request_body_size', 'string');
         $resolver->setAllowedTypes('class_serializers', 'array');
+        $resolver->setAllowedTypes('fastcgi_finish_request', 'bool');
 
         $resolver->setAllowedValues('max_request_body_size', ['none', 'never', 'small', 'medium', 'always']);
         $resolver->setAllowedValues('dsn', \Closure::fromCallable([$this, 'validateDsnOption']));