if ((flags & ARRAY_JOIN_PRETTIFY) && hash_key->key) {
key = php_http_pretty_key(estrndup(hash_key->key->val, hash_key->key->len), hash_key->key->len, 1, 1);
if ((flags & ARRAY_JOIN_PRETTIFY) && hash_key->key) {
key = php_http_pretty_key(estrndup(hash_key->key->val, hash_key->key->len), hash_key->key->len, 1, 1);