from /usr/local/src/swoole-master/ext-src/swoole_http_response.cc:17:

/usr/local/php7-31/include/php/Zend/zend_API.h: In function ‘void php_swoole_http_response_cookie(zend_execute_data*, zval*, bool)’:
/usr/local/php7-31/include/php/Zend/zend_API.h:785:38: warning: ‘_i’ may be used uninitialized in this function [-Wmaybe-uninitialized]
zend_wrong_parameter_type_error(_i, _expected_type, _arg);
^
/usr/local/php7-31/include/php/Zend/zend_API.h:723:7: note: ‘_i’ was declared here
int _i;
^
/usr/local/php7-31/include/php/Zend/zend_API.h:756:2: note: in expansion of macro ‘ZEND_PARSE_PARAMETERS_START_EX’
ZEND_PARSE_PARAMETERS_START_EX(0, min_num_args, max_num_args)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/src/swoole-master/ext-src/swoole_http_response.cc:962:5: note: in expansion of macro ‘ZEND_PARSE_PARAMETERS_START’
ZEND_PARSE_PARAMETERS_START(1, 9)