PHP_HTTP_API php_http_message_t *php_http_message_init(php_http_message_t *m, php_http_message_type_t t TSRMLS_DC);
PHP_HTTP_API php_http_message_t *php_http_message_init_env(php_http_message_t *m, php_http_message_type_t t TSRMLS_DC);
PHP_HTTP_API php_http_message_t *php_http_message_copy(php_http_message_t *from, php_http_message_t *to);
PHP_HTTP_API php_http_message_t *php_http_message_init(php_http_message_t *m, php_http_message_type_t t TSRMLS_DC);
PHP_HTTP_API php_http_message_t *php_http_message_init_env(php_http_message_t *m, php_http_message_type_t t TSRMLS_DC);
PHP_HTTP_API php_http_message_t *php_http_message_copy(php_http_message_t *from, php_http_message_t *to);