diff --git a/tests/PHPStan/Rules/Functions/CallToNonExistentFunctionRuleTest.php b/tests/PHPStan/Rules/Functions/CallToNonExistentFunctionRuleTest.php
index 29b5d1662b..0f5876e7bc 100644
--- a/tests/PHPStan/Rules/Functions/CallToNonExistentFunctionRuleTest.php
+++ b/tests/PHPStan/Rules/Functions/CallToNonExistentFunctionRuleTest.php
@@ -162,4 +162,28 @@ public function testBug7952(): void
 		$this->analyse([__DIR__ . '/data/bug-7952.php'], []);
 	}
 
+	public function testBug8058(): void
+	{
+		if (PHP_VERSION_ID < 80200) {
+			$this->markTestSkipped('Test requires PHP 8.2');
+		}
+
+		$this->analyse([__DIR__ . '/../Methods/data/bug-8058.php'], []);
+	}
+
+	public function testBug8058b(): void
+	{
+		if (PHP_VERSION_ID >= 80200) {
+			$this->markTestSkipped('Test requires PHP before 8.2');
+		}
+
+		$this->analyse([__DIR__ . '/../Methods/data/bug-8058.php'], [
+			[
+				'Function mysqli_execute_query not found.',
+				13,
+				'Learn more at https://phpstan.org/user-guide/discovering-symbols',
+			],
+		]);
+	}
+
 }
diff --git a/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php b/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php
index 28f4d52aaf..c40b61e2a4 100644
--- a/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php
+++ b/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php
@@ -2628,4 +2628,33 @@ public function testBug7600(): void
 		$this->analyse([__DIR__ . '/data/bug-7600.php'], []);
 	}
 
+	public function testBug8058(): void
+	{
+		if (PHP_VERSION_ID < 80200) {
+			$this->markTestSkipped('Test requires PHP 8.2');
+		}
+		$this->checkThisOnly = false;
+		$this->checkNullables = false;
+		$this->checkUnionTypes = false;
+		$this->checkExplicitMixed = false;
+		$this->analyse([__DIR__ . '/data/bug-8058.php'], []);
+	}
+
+	public function testBug8058b(): void
+	{
+		if (PHP_VERSION_ID >= 80200) {
+			$this->markTestSkipped('Test requires PHP before 8.2');
+		}
+		$this->checkThisOnly = false;
+		$this->checkNullables = false;
+		$this->checkUnionTypes = false;
+		$this->checkExplicitMixed = false;
+		$this->analyse([__DIR__ . '/data/bug-8058.php'], [
+			[
+				'Call to an undefined method mysqli::execute_query().',
+				11,
+			],
+		]);
+	}
+
 }
diff --git a/tests/PHPStan/Rules/Methods/data/bug-8058.php b/tests/PHPStan/Rules/Methods/data/bug-8058.php
new file mode 100644
index 0000000000..b2334de680
--- /dev/null
+++ b/tests/PHPStan/Rules/Methods/data/bug-8058.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Bug8058;
+
+use function PHPStan\Testing\assertType;
+
+class Foo
+{
+	public function syntaxError(\mysqli $mysqli, string $s): void
+	{
+		$mysqli->execute_query($s);
+
+		\mysqli_execute_query($mysqli, $s);
+	}
+}