visitors

Say I found the node that meets my criteria and I need to stop the search. The solution is to throw an exception of your known type - then catch it on the calling side. From the FAQ : How do I perform an early exit from an algorithm such as BFS? Create a visitor that throws an exception when you want to cut off the search, then put your call to breadth_first_search inside of an appropriate try/catch block. This strikes many programmers as a misuse of exceptions, however, much thought was put into the decision to have exceptions has the preferred way to exit early. See boost email discussions

How I can count visitors ?? I want to insert when open the page and when close or leave the page but not onunload And I don't want to insert when refresh the page the below code help me to insert when open the page , but not help when close session_start(); if (!isset($_SESSION["visits"])) $_SESSION["visits"] = 0; if ($_SESSION["visits"] > 1){ echo 'visit='.$_SESSION["visits"]; echo "You hit the refresh button!";} else{ mysql_query( "INSERT INTO najd_visit( visit_userId, visit_staticId, visit_page, visit_enterTime)VALUES ('$userId', '$Sid', '$title', '$date') "); $_SESSION["visits"] = $

I need to get the current site visitors number using Javascript or PHP. I need it using the best way between php and Javascript. The following link is a blog post regarding a widget that will allow you to use PHP, MySQL and JavaScript/jQuery. It might be able to point you in the right direction for what you need, and features a tutorial on implementing it. Who Is Online Widget Hope this helps you out. Here is another great tutorial that might help you out: http://inobscuro.com/tutorials/simple-php-unique-visitors-counter-30/ Good will coding... 来源： https://stackoverflow.com/questions/4649926

It is impossible to identify a user or request as unique since duping is trivial. However, there are a handful of methods that, combined, can hamper cheating attempts and give a user quasi-unique status. I know of the following: IP Address - store the IP address of each visitor in a database of some sort Can be faked Multiple computers/users can have the same address Users with dynamic IP addresses (some ISP issue them) Cookie tracking - store a cookie per visitor. Visitors that don't have it are considered "unique" Can be faked Cookies can be blocked or cleared via browser Are there more ways