PHP Simple statistics on the number of people online method

This article is an example of PHP simple statistics online number of methods. Share to everyone for your reference, as follows:

<?php//first you have to read and write the permissions of the file//This program can be run directly, the first error, to fou smear shoot? $online _log = "Count.dat"; Save the number of files, $timeout = 30;//30 seconds not moving the author, think the drop line $entries = file ($online _log); $temp = Array (); for ($i =0; $i time
 
  
   
   ()) {  Array_push ($temp, $entry [0]. ",". $entry [1]. " \ n "); Remove the information from other visitors and remove the timeout, and save it in $temp}}array_push ($temp, getenv (' remote_addr '). ",". ( Time () + ($timeout)). " \ n "); Update the browser time $users_online = count ($temp); Calculate the number of online $entries = Implode ("", $temp);//write File $fp = fopen ($online _log, "w"); Flock ($fp, LOCK_EX); Flock () cannot work properly in NFS and some other network file systems Fputs ($FP, $entries), Flock ($FP, Lock_un), fclose ($FP), echo "current". $users _online. " People online ";? >
 
  

How to use:

Save the above code as count.php, in the location you want to use:

Include ("count.php");

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