#if PHP_HTTP_CURL_VERSION(7,19,1)
REGISTER_NS_LONG_CONSTANT("http\\Client\\Curl", "POSTREDIR_301", CURL_REDIR_POST_301, CONST_CS|CONST_PERSISTENT);
REGISTER_NS_LONG_CONSTANT("http\\Client\\Curl", "POSTREDIR_302", CURL_REDIR_POST_302, CONST_CS|CONST_PERSISTENT);
+#if PHP_HTTP_CURL_VERSION(7,26,0)
REGISTER_NS_LONG_CONSTANT("http\\Client\\Curl", "POSTREDIR_303", CURL_REDIR_POST_303, CONST_CS|CONST_PERSISTENT);
+#endif
REGISTER_NS_LONG_CONSTANT("http\\Client\\Curl", "POSTREDIR_ALL", CURL_REDIR_POST_ALL, CONST_CS|CONST_PERSISTENT);
#endif