Fixed a crash inside dtor for error handling.

diff --git a/main/main.c b/main/main.c
index d12f7e57e95f6829416c7365c8fbf93f7b6576d1..ef4c9e8a7cccf411a32e5ad57b8fd98c0ec16625 100644 (file)
--- a/main/main.c
+++ b/main/main.c
@@ -880,9 +880,11 @@ static void php_error_cb(int type, const char *error_filename, const uint error_
        if (display) {
                if (PG(last_error_message)) {
                        free(PG(last_error_message));
+                       PG(last_error_message) = NULL;
                }
                if (PG(last_error_file)) {
                        free(PG(last_error_file));
+                       PG(last_error_file) = NULL;
                }
                if (!error_filename) {
                        error_filename = "Unknown";