diff --git a/Zend/zend_builtin_functions.c b/Zend/zend_builtin_functions.c
index bb8bb28bf6e4f..daf39ba5c68b6 100644
--- a/Zend/zend_builtin_functions.c
+++ b/Zend/zend_builtin_functions.c
@@ -974,7 +974,7 @@ ZEND_FUNCTION(method_exists)
 			if (func->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) {
 				/* Returns true for the fake Closure's __invoke */
 				RETVAL_BOOL(func->common.scope == zend_ce_closure
-					&& zend_string_equals_literal_ci(method_name, ZEND_INVOKE_FUNC_NAME));
+					&& zend_string_equals_ci(method_name, ZSTR_KNOWN(ZEND_STR_MAGIC_INVOKE)));
 
 				zend_string_release_ex(func->common.function_name, 0);
 				zend_free_trampoline(func);
@@ -985,7 +985,7 @@ ZEND_FUNCTION(method_exists)
 	} else {
 	    /* Returns true for fake Closure::__invoke */
 	    if (ce == zend_ce_closure
-	        && zend_string_equals_literal_ci(method_name, ZEND_INVOKE_FUNC_NAME)) {
+	        && zend_string_equals_ci(method_name, ZSTR_KNOWN(ZEND_STR_MAGIC_INVOKE))) {
 	        RETURN_TRUE;
 	    }
 	}
@@ -1537,7 +1537,7 @@ ZEND_FUNCTION(get_resources)
 				zend_hash_index_add_new(Z_ARRVAL_P(return_value), index, val);
 			}
 		} ZEND_HASH_FOREACH_END();
-	} else if (zend_string_equals_literal(type, "Unknown")) {
+	} else if (zend_string_equals(type, ZSTR_KNOWN(ZEND_STR_UNKNOWN_CAPITALIZED))) {
 		array_init(return_value);
 		ZEND_HASH_FOREACH_KEY_VAL(&EG(regular_list), index, key, val) {
 			if (!key && Z_RES_TYPE_P(val) <= 0) {
diff --git a/ext/reflection/php_reflection.c b/ext/reflection/php_reflection.c
index 724de0a491240..07a38b2d3d640 100644
--- a/ext/reflection/php_reflection.c
+++ b/ext/reflection/php_reflection.c
@@ -194,7 +194,7 @@ static zend_always_inline uint32_t prop_get_flags(const property_reference *ref)
 
 static inline bool is_closure_invoke(const zend_class_entry *ce, const zend_string *lcname) {
 	return ce == zend_ce_closure
-		&& zend_string_equals_literal(lcname, ZEND_INVOKE_FUNC_NAME);
+		&& zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_MAGIC_INVOKE));
 }
 
 static zend_function *_copy_function(zend_function *fptr) /* {{{ */