diff --git a/NEWS b/NEWS
index 11c0cf915a0..1f4e0dbfaa9 100644
--- a/NEWS
+++ b/NEWS
@@ -131,6 +131,8 @@ PHP                                                                        NEWS
   (Dmitry)
 - Fixed bug #38456 (Apache2 segfaults when virtual() is called in .php
   ErrorDocument). (Ilia)
+- Fixed bug #38252 (Incorrect PDO error message on invalid default fetch
+  mode). (Ilia)
 - Fixed bug #37773 (iconv_substr() gives "Unknown error" when string length = 1").
   (Ilia)
 - Fixed bug #36975 (natcasesort() causes array_pop() to misbehave). (Hannes)
diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 45df0b12216..5bbeec3eae9 100755
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -706,6 +706,15 @@ static int pdo_dbh_attribute_set(pdo_dbh_t *dbh, long attr, zval *value TSRMLS_D
 			return SUCCESS;
 
 		case PDO_ATTR_DEFAULT_FETCH_MODE:
+			if (Z_TYPE_P(value) == IS_ARRAY) {
+				zval **tmp;
+				if (zend_hash_index_find(Z_ARRVAL_P(value), 0, (void**)&tmp) == SUCCESS && Z_TYPE_PP(tmp) == IS_LONG) {
+					if (Z_LVAL_PP(tmp) == PDO_FETCH_INTO || Z_LVAL_PP(tmp) == PDO_FETCH_CLASS) {
+						pdo_raise_impl_error(dbh, NULL, "HY000", "FETCH_INTO and FETCH_CLASS are not yet supported as default fetch modes" TSRMLS_CC);
+						return FAILURE;
+					}
+				}
+			}
 			convert_to_long(value);
 			if (Z_LVAL_P(value) == PDO_FETCH_USE_DEFAULT) {
 				pdo_raise_impl_error(dbh, NULL, "HY000", "invalid fetch mode type" TSRMLS_CC);