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-rw-r--r--ext/standard/html.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/standard/html.c b/ext/standard/html.c
index 7ca8416fe3..8cf4fe45be 100644
--- a/ext/standard/html.c
+++ b/ext/standard/html.c
@@ -1577,7 +1577,7 @@ static inline void write_s3row_data(
enum entity_charset charset,
zval *arr)
{
- char key[8]; /* two unicode code points in UTF-8 */
+ char key[9] = ""; /* two unicode code points in UTF-8 */
char entity[LONGEST_ENTITY_LENGTH + 2] = {'&'};
size_t written_k1;