diff --git a/Zend/zend_execute.c b/Zend/zend_execute.c
index 573e2c384da..fb0f8b0835d 100644
--- a/Zend/zend_execute.c
+++ b/Zend/zend_execute.c
@@ -791,7 +791,11 @@ static void zend_fetch_dimension_address(znode *result, znode *op1, znode *op2,
 				zval *new_zval = &EG(uninitialized_zval);
 
 				new_zval->refcount++;
-				zend_hash_next_index_insert(container->value.ht, &new_zval, sizeof(zval *), (void **) retval);
+				if (zend_hash_next_index_insert(container->value.ht, &new_zval, sizeof(zval *), (void **) retval) == FAILURE) {
+					zend_error(E_WARNING, "Cannot add element to the array as the nexxt element is already occupied");
+					*retval = &EG(uninitialized_zval_ptr);
+					new_zval->refcount--; 
+				}
 			} else {
 				*retval = zend_fetch_dimension_address_inner(container->value.ht, op2, Ts, type TSRMLS_CC);
 			}
diff --git a/Zend/zend_hash.c b/Zend/zend_hash.c
index 06f8335d7f5..77b4caa6568 100644
--- a/Zend/zend_hash.c
+++ b/Zend/zend_hash.c
@@ -393,7 +393,7 @@ ZEND_API int zend_hash_index_update_or_next_insert(HashTable *ht, ulong h, void
 			}
 			UPDATE_DATA(ht, p, pData, nDataSize);
 			HANDLE_UNBLOCK_INTERRUPTIONS();
-			if (h >= ht->nNextFreeElement) {
+			if ((long)h >= (long)ht->nNextFreeElement) {
 				ht->nNextFreeElement = h + 1;
 			}
 			if (pDest) {
@@ -421,7 +421,7 @@ ZEND_API int zend_hash_index_update_or_next_insert(HashTable *ht, ulong h, void
 	CONNECT_TO_GLOBAL_DLLIST(p, ht);
 	HANDLE_UNBLOCK_INTERRUPTIONS();
 
-	if (h >= ht->nNextFreeElement) {
+	if ((long)h >= (long)ht->nNextFreeElement) {
 		ht->nNextFreeElement = h + 1;
 	}
 	ht->nNumOfElements++;