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-rw-r--r--ext/standard/php_string.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/standard/php_string.h b/ext/standard/php_string.h
index 8390bd79fe..6f10e9a313 100644
--- a/ext/standard/php_string.h
+++ b/ext/standard/php_string.h
@@ -161,7 +161,7 @@ PHPAPI char *php_strerror(int errnum);
# define php_mb_reset() memset(&BG(mblen_state), 0, sizeof(BG(mblen_state)))
#else
# define php_mblen(ptr, len) mblen(ptr, len)
-# define php_mb_reset() mblen(NULL, 0)
+# define php_mb_reset() php_ignore_value(mblen(NULL, 0))
#endif
void register_string_constants(INIT_FUNC_ARGS);