diff --git a/resources/functionMap.php b/resources/functionMap.php
index f83a55d4aa..c772596bcc 100644
--- a/resources/functionMap.php
+++ b/resources/functionMap.php
@@ -12929,7 +12929,7 @@
 'unserialize' => ['mixed', 'variable_representation'=>'string', 'allowed_classes='=>'array{allowed_classes?:string[]|bool}'],
 'untaint' => ['bool', '&rw_string'=>'string', '&...rw_strings='=>'string'],
 'uopz_add_function' => ['bool', 'class'=>'string', 'function'=>'string', 'handler'=>'Closure', '$flags'=>'bool', '$all'=>'bool'],
-'uopz_add_function\1' => ['bool', 'function'=>'string', 'handler'=>'Closure', '$flags'=>'bool'],
+'uopz_add_function\'1' => ['bool', 'function'=>'string', 'handler'=>'Closure', '$flags'=>'bool'],
 'uopz_allow_exit' => ['void', 'allow'=>'bool'],
 'uopz_backup' => ['void', 'class'=>'string', 'function'=>'string'],
 'uopz_backup\'1' => ['void', 'function'=>'string'],
@@ -12937,7 +12937,7 @@
 'uopz_copy' => ['Closure', 'class'=>'string', 'function'=>'string'],
 'uopz_copy\'1' => ['Closure', 'function'=>'string'],
 'uopz_del_function' => ['bool', 'class'=>'string', 'function'=>'string', '$all'=>'bool'],
-'uopz_del_function\1' => ['bool', 'function'=>'string'],
+'uopz_del_function\'1' => ['bool', 'function'=>'string'],
 'uopz_delete' => ['void', 'class'=>'string', 'function'=>'string'],
 'uopz_delete\'1' => ['void', 'function'=>'string'],
 'uopz_extend' => ['void', 'class'=>'string', 'parent'=>'string'],
@@ -12947,13 +12947,13 @@
 'uopz_function\'1' => ['void', 'function'=>'string', 'handler'=>'Closure', 'modifiers='=>'int'],
 'uopz_get_exit_status' => ['mixed'],
 'uopz_get_hook' => ['Closure', 'class'=>'string', 'function'=>'string'],
-'uopz_get_hook\1' => ['Closure', 'function'=>'string'],
+'uopz_get_hook\'1' => ['Closure', 'function'=>'string'],
 'uopz_get_mock' => ['mixed', 'class'=>'string'],
-'uopz_get_property' => ['void', 'class'=>'string', 'property'=>'string'],
-'uopz_get_property\1' => ['void', 'instance'=>'object', 'property'=>'string'],
+'uopz_get_property' => ['mixed', 'class'=>'string', 'property'=>'string'],
+'uopz_get_property\'1' => ['mixed', 'instance'=>'object', 'property'=>'string'],
 'uopz_get_return' => ['mixed', 'class='=>'string', 'function='=>'string'],
 'uopz_get_static' => ['array', 'class='=>'string', 'function='=>'string'],
-'uopz_get_static\1' => ['array', 'function='=>'string'],
+'uopz_get_static\'1' => ['array', 'function='=>'string'],
 'uopz_implement' => ['void', 'class'=>'string', 'interface'=>'string'],
 'uopz_overload' => ['void', 'opcode'=>'int', 'callable'=>'Callable'],
 'uopz_redefine' => ['void', 'class'=>'string', 'constant'=>'string', 'value'=>'mixed'],
@@ -12964,13 +12964,13 @@
 'uopz_restore\'1' => ['void', 'function'=>'string'],
 'uopz_set_mock' => ['void', 'class'=>'string', 'mock'=>'object|string'],
 'uopz_set_property' => ['void', 'class'=>'string', 'property'=>'string', 'value'=>'mixed'],
-'uopz_set_property\1' => ['void', 'instance'=>'object', 'property'=>'string', 'value'=>'mixed'],
+'uopz_set_property\'1' => ['void', 'instance'=>'object', 'property'=>'string', 'value'=>'mixed'],
 'uopz_set_return' => ['bool', 'class'=>'string', 'function'=>'string', 'value'=>'mixed', 'execute='=>'bool'],
 'uopz_set_return\'1' => ['bool', 'function'=>'string', 'value'=>'mixed', 'execute='=>'bool'],
 'uopz_undefine' => ['void', 'class'=>'string', 'constant'=>'string'],
 'uopz_undefine\'1' => ['void', 'constant'=>'string'],
 'uopz_set_hook' => ['bool', 'class'=>'string', 'function'=>'string', 'hook'=>'Closure'],
-'uopz_set_hook\1' => ['bool', 'function'=>'string', 'hook'=>'Closure'],
+'uopz_set_hook\'1' => ['bool', 'function'=>'string', 'hook'=>'Closure'],
 'uopz_unset_mock' => ['void', 'class'=>'string'],
 'uopz_unset_return' => ['bool', 'class='=>'string', 'function='=>'string'],
 'uopz_unset_return\'1' => ['bool', 'function'=>'string'],
diff --git a/tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php b/tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php
index 7ce9a166c7..3114bedfe9 100644
--- a/tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php
+++ b/tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php
@@ -1939,4 +1939,9 @@ public function testBug9167(): void
 		$this->analyse([__DIR__ . '/data/bug-9167.php'], []);
 	}
 
+	public function testBug12499(): void
+	{
+		$this->analyse([__DIR__ . '/data/bug-12499.php'], []);
+	}
+
 }
diff --git a/tests/PHPStan/Rules/Functions/data/bug-12499.php b/tests/PHPStan/Rules/Functions/data/bug-12499.php
new file mode 100644
index 0000000000..1322e06e4f
--- /dev/null
+++ b/tests/PHPStan/Rules/Functions/data/bug-12499.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Bug12499;
+
+class HelloWorld {
+	public static string $testString = 'test';
+}
+
+$property = uopz_get_property(HelloWorld::class, 'testString');
+
+uopz_set_property(HelloWorld::class, 'testString', 'test2');
+
+class HelloWorld2 {
+	public function __construct(
+		public string $testString,
+	) {}
+}
+
+$classInstance = new HelloWorld2('test');
+
+$property = uopz_get_property($classInstance, 'testString');
+
+uopz_set_property($classInstance, 'testString', 'test2');