diff --git a/src/Config.php b/src/Config.php
index 296542e3..2776f2bb 100644
--- a/src/Config.php
+++ b/src/Config.php
@@ -1001,7 +1001,28 @@ private function levelTooLow(Level $level): bool
      */
     public function shouldSuppress(): bool
     {
-        return error_reporting() === 0 && !$this->reportSuppressed;
+        // report_suppressed option forces reporting regardless of PHP settings.
+        if ($this->reportSuppressed) {
+            return false;
+        }
+
+        $errorReporting = error_reporting();
+
+        // For error control operator of PHP 8:
+        // > Prior to PHP 8.0.0, the error_reporting() called inside the
+        // > custom error handler always returned 0 if the error was
+        // > suppressed by the @ operator. As of PHP 8.0.0, it returns
+        // > the value E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR |
+        // > E_USER_ERROR | E_RECOVERABLE_ERROR | E_PARSE.
+        // https://www.php.net/manual/en/language.operators.errorcontrol.php
+        if (version_compare(PHP_VERSION, '8.0', 'ge') && $errorReporting === (
+            E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR | E_USER_ERROR | E_RECOVERABLE_ERROR | E_PARSE
+        )) {
+            return true;
+        }
+
+        // PHP 7 or manually disabled case:
+        return $errorReporting === 0;
     }
 
     public function send(EncodedPayload $payload, string $accessToken): ?Response
diff --git a/src/DataBuilder.php b/src/DataBuilder.php
index a074354b..4af2cddd 100644
--- a/src/DataBuilder.php
+++ b/src/DataBuilder.php
@@ -178,7 +178,7 @@ protected function setLocalVarsDump($config)
         $fromConfig = isset($config['local_vars_dump']) ? $config['local_vars_dump'] : null;
         $this->localVarsDump = self::$defaults->localVarsDump($fromConfig);
         if ($this->localVarsDump && !empty(ini_get('zend.exception_ignore_args'))) {
-            ini_set('zend.exception_ignore_args', 'Off');
+            ini_set('zend.exception_ignore_args', '0');
             assert(empty(ini_get('zend.exception_ignore_args')));
         }
     }
diff --git a/tests/ConfigTest.php b/tests/ConfigTest.php
index b4bf47d4..15b8da7d 100644
--- a/tests/ConfigTest.php
+++ b/tests/ConfigTest.php
@@ -382,6 +382,16 @@ public function testReportSuppressed($errorReporting, $configKey, $configValue,
         }
     }
 
+    public function testReportSuppressedActuallySuppressed()
+    {
+        $config = new Config(array(
+            'report_suppressed' => false,
+            "access_token" => $this->getTestAccessToken()
+        ));
+        $this->assertFalse($config->shouldSuppress());
+        $this->assertTrue(@$config->shouldSuppress());
+    }
+
     public function testFilter()
     {
         $d = m::mock("Rollbar\Payload\Data")