ERR_error_string 4765 ext/openssl/openssl.c 		RETURN_STRING(ERR_error_string(val, buf));
ERR_error_string  620 ext/openssl/xp_ssl.c 			php_error_docref(NULL, E_WARNING, "Error encoding X509 certificate: %d: %s", err_code, ERR_error_string(err_code, err_buf));