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-rw-r--r--ext/json/json.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/ext/json/json.c b/ext/json/json.c
index 8c4d20fb2a..1e37e50ccb 100644
--- a/ext/json/json.c
+++ b/ext/json/json.c
@@ -589,7 +589,9 @@ static void json_encode_serializable_object(smart_str *buf, zval *val, int optio
ZVAL_STRING(&fname, "jsonSerialize", 0);
if (FAILURE == call_user_function_ex(EG(function_table), &val, &fname, &retval, 0, NULL, 1, NULL TSRMLS_CC) || !retval) {
- zend_throw_exception_ex(NULL, 0 TSRMLS_CC, "Failed calling %s::jsonSerialize()", ce->name);
+ if (!EG(exception)) {
+ zend_throw_exception_ex(NULL, 0 TSRMLS_CC, "Failed calling %s::jsonSerialize()", ce->name);
+ }
smart_str_appendl(buf, "null", sizeof("null") - 1);
return;
}