diff --git a/src/Context/Context.php b/src/Context/Context.php
index a12c2de60..1a0b26226 100644
--- a/src/Context/Context.php
+++ b/src/Context/Context.php
@@ -7,7 +7,6 @@
 use function assert;
 use const FILTER_VALIDATE_BOOLEAN;
 use function filter_var;
-use function ini_get;
 use function spl_object_id;
 
 /**
@@ -15,6 +14,8 @@
  */
 final class Context implements ContextInterface
 {
+    private const OTEL_PHP_DEBUG_SCOPES_DISABLED = 'OTEL_PHP_DEBUG_SCOPES_DISABLED';
+
     /** @var ContextStorageInterface&ExecutionContextAwareInterface */
     private static ContextStorageInterface $storage;
 
@@ -91,9 +92,10 @@ public function activate(): ScopeInterface
 
     private static function debugScopesDisabled(): bool
     {
-        $disabled = $_SERVER['OTEL_PHP_DEBUG_SCOPES_DISABLED'] ?? ini_get('OTEL_PHP_DEBUG_SCOPES_DISABLED');
-
-        return filter_var($disabled, FILTER_VALIDATE_BOOLEAN);
+        return filter_var(
+            $_SERVER[self::OTEL_PHP_DEBUG_SCOPES_DISABLED] ?? \getenv(self::OTEL_PHP_DEBUG_SCOPES_DISABLED) ?: \ini_get(self::OTEL_PHP_DEBUG_SCOPES_DISABLED),
+            FILTER_VALIDATE_BOOLEAN
+        );
     }
 
     public function withContextValue(ImplicitContextKeyedInterface $value): ContextInterface
diff --git a/tests/Unit/Context/ContextTest.php b/tests/Unit/Context/ContextTest.php
index 213ff66c9..b023300a4 100644
--- a/tests/Unit/Context/ContextTest.php
+++ b/tests/Unit/Context/ContextTest.php
@@ -6,6 +6,7 @@
 
 use OpenTelemetry\Context\Context;
 use OpenTelemetry\Context\ContextKeys;
+use OpenTelemetry\Context\DebugScope;
 use OpenTelemetry\Context\ImplicitContextKeyedInterface;
 use PHPUnit\Framework\TestCase;
 use stdClass;
@@ -177,4 +178,88 @@ public function test_attach_and_detach_set_current_ctx(): void
             $scope->detach();
         }
     }
+
+    public function test_debug_scopes_disabled_env_var(): void
+    {
+        \putenv('OTEL_PHP_DEBUG_SCOPES_DISABLED=1');
+
+        $context = Context::getRoot();
+
+        $scope = $context->activate();
+
+        try {
+            $this->assertNotInstanceOf(DebugScope::class, $scope);
+        } finally {
+            $scope->detach();
+            \putenv('OTEL_PHP_DEBUG_SCOPES_DISABLED');
+        }
+    }
+
+    public function test_debug_scopes_disabled_server_var(): void
+    {
+        $_SERVER['OTEL_PHP_DEBUG_SCOPES_DISABLED'] = '1';
+
+        $context = Context::getRoot();
+
+        $scope = $context->activate();
+
+        try {
+            $this->assertNotInstanceOf(DebugScope::class, $scope);
+        } finally {
+            $scope->detach();
+            unset($_SERVER['OTEL_PHP_DEBUG_SCOPES_DISABLED']);
+        }
+    }
+
+    public function test_debug_scopes_disabled_order_server(): void
+    {
+        $_SERVER['OTEL_PHP_DEBUG_SCOPES_DISABLED'] = '1';
+        \putenv('OTEL_PHP_DEBUG_SCOPES_DISABLED=0');
+
+        $context = Context::getRoot();
+
+        $scope = $context->activate();
+
+        try {
+            $this->assertNotInstanceOf(DebugScope::class, $scope);
+        } finally {
+            $scope->detach();
+            unset($_SERVER['OTEL_PHP_DEBUG_SCOPES_DISABLED']);
+            \putenv('OTEL_PHP_DEBUG_SCOPES_DISABLED');
+        }
+    }
+
+    public function test_debug_scopes_disabled_falsey_server(): void
+    {
+        $_SERVER['OTEL_PHP_DEBUG_SCOPES_DISABLED'] = '0';
+        \putenv('OTEL_PHP_DEBUG_SCOPES_DISABLED=1');
+
+        $context = Context::getRoot();
+
+        $scope = $context->activate();
+
+        try {
+            $this->assertInstanceOf(DebugScope::class, $scope);
+        } finally {
+            $scope->detach();
+            unset($_SERVER['OTEL_PHP_DEBUG_SCOPES_DISABLED']);
+            \putenv('OTEL_PHP_DEBUG_SCOPES_DISABLED');
+        }
+    }
+
+    public function test_debug_scopes_disabled_falsey_env(): void
+    {
+        \putenv('OTEL_PHP_DEBUG_SCOPES_DISABLED=0');
+
+        $context = Context::getRoot();
+
+        $scope = $context->activate();
+
+        try {
+            $this->assertInstanceOf(DebugScope::class, $scope);
+        } finally {
+            $scope->detach();
+            \putenv('OTEL_PHP_DEBUG_SCOPES_DISABLED');
+        }
+    }
 }