+#define http_send_cache_control(c, l) _http_send_cache_control((c), (l) TSRMLS_CC)
+PHP_HTTP_API STATUS _http_send_cache_control(const char *cache_control, const size_t cc_len TSRMLS_DC);
+
+#define http_send_content_type(c, l) _http_send_content_type((c), (l) TSRMLS_CC)
+PHP_HTTP_API STATUS _http_send_content_type(const char *content_type, const size_t ct_len TSRMLS_DC);
+
+#define http_send_content_disposition(f, l, i) _http_send_content_disposition((f), (l), (i) TSRMLS_CC)
+PHP_HTTP_API STATUS _http_send_content_disposition(const char *filename, const size_t f_len, const int send_inline TSRMLS_DC);
+
+#define http_cache_last_modified(l, s, cc, ccl) _http_cache_last_modified((l), (s), (cc), (ccl) TSRMLS_CC)
+PHP_HTTP_API STATUS _http_cache_last_modified(const time_t last_modified, const time_t send_modified, const char *cache_control, const size_t cc_len TSRMLS_DC);
+
+#define http_cache_etag(e, el, cc, ccl) _http_cache_etag((e), (el), (cc), (ccl) TSRMLS_CC)
+PHP_HTTP_API STATUS _http_cache_etag(const char *etag, const size_t etag_len, const char *cache_control, const size_t cc_len TSRMLS_DC);
+