@ -218,6 +218,7 @@ php_apache_sapi_register_variables(zval *track_vars_array TSRMLS_DC)
php_struct *ctx = SG(server_context);
const apr_array_header_t *arr = apr_table_elts(ctx->r->subprocess_env);
char *key, *val;
int new_val_len;
APR_ARRAY_FOREACH_OPEN(arr, key, val)
if (!val) {