この記述で現在の定義済定数の出力が得られる。
if(phpversion()>="4.1.0"){
extract($_GET);
extract($_POST);
extract($_COOKIE);
extract($_SERVER);
}
echo $PHP_SELF."<br>\n";
echo "PHP_SELF";
echo "<br>\n";
echo "-------------------"."<br>\n";
echo $argv."<br>\n";
echo "argv";
echo "<br>\n";
echo "-------------------"."<br>\n";
echo $SERVER_NAME."<br>\n";
echo "SERVER_NAME";
echo "<br>\n";
echo "-------------------"."<br>\n";
echo $GATEWAY_INTERFACE."<br>\n";;
echo "GATEWAY_INTERFACE"."<br>\n";
echo "-------------------"."<br>\n";
echo $SERVER_SOFTWARE."<br>\n";;
echo "SERVER_SOFTWARE"."<br>\n";
echo "-------------------"."<br>\n";
echo $SERVER_PROTOCOL."<br>\n";;
echo "SERVER_PROTOCOL"."<br>\n";
echo "-------------------"."<br>\n";
echo $REQUEST_METHOD."<br>\n";;
echo "REQUEST_METHOD"."<br>\n";
echo "-------------------"."<br>\n";
echo $QUERY_STRING."<br>\n";;
echo "QUERY_STRING"."<br>\n";
echo "-------------------"."<br>\n";
echo $DOCUMENT_ROOT."<br>\n";;
echo "DOCUMENT_ROOT"."<br>\n";
echo "-------------------"."<br>\n";
echo $HTTP_ACCEPT."<br>\n";;
echo "HTTP_ACCEPT"."<br>\n";
echo "-------------------"."<br>\n";
echo $HTTP_ACCEPT_CHARSET."<br>\n";;
echo "HTTP_ACCEPT_CHARSET"."<br>\n";
echo "-------------------"."<br>\n";
echo $HTTP_ACCEPT_ENCODING."<br>\n";;
echo "HTTP_ACCEPT_ENCODING"."<br>\n";
echo "-------------------"."<br>\n";
echo $HTTP_ACCEPT_LANGUAGE."<br>\n";;
echo "HTTP_ACCEPT_LANGUAGE"."<br>\n";
echo "-------------------"."<br>\n";
echo $HTTP_CONNECTION."<br>\n";;
echo "HTTP_CONNECTION"."<br>\n";
echo "-------------------"."<br>\n";
echo $HTTP_HOST."<br>\n";;
echo "HTTP_HOST"."<br>\n";
echo "-------------------"."<br>\n";
echo $HTTP_REFERER."<br>\n";;
echo "HTTP_REFERER"."<br>\n";
echo "-------------------"."<br>\n";
echo $HTTP_USER_AGENT."<br>\n";;
echo "HTTP_USER_AGENT"."<br>\n";
echo "-------------------"."<br>\n";
echo $REMOTE_ADDR."<br>\n";;
echo "REMOTE_ADDR"."<br>\n";
echo "-------------------"."<br>\n";
echo $REMOTE_PORT."<br>\n";;
echo "REMOTE_PORT"."<br>\n";
echo "-------------------"."<br>\n";
echo $SCRIPT_FILENAME."<br>\n";;
echo "SCRIPT_FILENAME"."<br>\n";
echo "-------------------"."<br>\n";
echo $SERVER_ADMIN."<br>\n";;
echo "SERVER_ADMIN"."<br>\n";
echo "-------------------"."<br>\n";
echo $SERVER_PORT."<br>\n";;
echo "SERVER_PORT"."<br>\n";
echo "-------------------"."<br>\n";
echo $SERVER_SIGNATURE."<br>\n";;
echo "SERVER_SIGNATURE"."<br>\n";
echo "-------------------"."<br>\n";
echo $PATH_TRANSLATED."<br>\n";;
echo "PATH_TRANSLATED"."<br>\n";
echo "-------------------"."<br>\n";
echo $SCRIPT_NAME."<br>\n";;
echo "SCRIPT_NAME"."<br>\n";
echo "-------------------"."<br>\n";
echo $REQUEST_URI."<br>\n";;
echo "REQUEST_URI"."<br>\n";
echo "-------------------"."<br>\n";