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-rw-r--r--ext/standard/var_unserializer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/standard/var_unserializer.c b/ext/standard/var_unserializer.c
index 5aa3bc8cb2..7cc465d01e 100644
--- a/ext/standard/var_unserializer.c
+++ b/ext/standard/var_unserializer.c
@@ -393,7 +393,7 @@ yy20:
}
if (zend_hash_find(CG(class_table), class_name, len2 + 1, (void **) &ce) != SUCCESS) {
- if (PG(unserialize_callback_func) == NULL) {
+ if ((PG(unserialize_callback_func) == NULL) || (PG(unserialize_callback_func)[0] == '\0')) {
incomplete_class = 1;
ce = PHP_IC_ENTRY;
} else {