Create visitor_counter.php

visitor_counter.php

@@ -0,0 +1,33 @@
+<?php
+
+define("COUNTER_START_VALUE", 0);
+define("COUNTER_LOG", "visit_counter.log"); //name of file you want to use to save the counter value
+
+/*************************************************************************************************/
+function IncrementCounter() 
+{   
+   $create_file = !file_exists(COUNTER_LOG);
+
+   if( !($fh = fopen(COUNTER_LOG, $create_file ? "x+b" : "r+b")) )
+      return "Error";       
+   //do an flock here, maybe, I don't know :-)
+
+   //Reading current value of counter:
+   if($create_file)
+      $count = COUNTER_START_VALUE;
+   else
+   {
+      $count = (int)fread($fh, 9); //reads 9 digits (supposing max 1 billion count)   
+      rewind($fh);
+   }
+
+   //Writing new counter value:
+   if(!fwrite($fh, ++$count))
+      return "Error";
+   if(!fclose($fh))
+      return "Error";       
+
+   return str_pad($count, 9, '0', STR_PAD_LEFT);
+}
+
+?>