title: PHP hit counter auto generate for multi pages
body: <p>Hi I'm a total newbie with php and i'm trying to get this current PHP text hit counter script from phpjunkyard.com to automatically generate counters for dynamic pages without me having to create a counter.txt file for every pages. so far i mange to get it to write a new .txt for every new page if it does not exist but i'm getting an error and i don't know how to remove it..
  PS: I'm use this counter because it has unique visitor counting system.</p>
  
  <p>this is the original full PHP file:</p>
  
  <pre><code>&lt;?php
  /*******************************************************************************
  *  Title: PHP hit counter (PHPcount)
  *  Version: 1.4 @ March 3, 2012
  *  Author: Klemen Stirn
  *  Website: http://www.phpjunkyard.com
  ********************************************************************************
  *  COPYRIGHT NOTICE
  *  Copyright 2004-2012 Klemen Stirn. All Rights Reserved.
  *
  *  This script may be used and modified free of charge by anyone
  *  AS LONG AS COPYRIGHT NOTICES AND ALL THE COMMENTS REMAIN INTACT.
  *  By using this code you agree to indemnify Klemen Stirn from any
  *  liability that might arise from it's use.
  *
  *  Selling the code for this program, in part or full, without prior
  *  written consent is expressly forbidden.
  *
  *  Obtain permission before redistributing this software over the Internet
  *  or in any other medium. In all cases copyright and header must remain
  *  intact. This Copyright is in full effect in any country that has
  *  International Trade Agreements with the United States of America or
  *  with the European Union.
  ********************************************************************************
  *
  *  ACKNOWLEDGEMENT
  *
  *  Please support future script development by linking to us:
  *  http://www.phpjunkyard.com/about/link2us.php
  *
  *  Or by sending a small donation:
  *  http://www.phpjunkyard.com/about/donate.php
  *
  *******************************************************************************/
  
  // SETUP YOUR COUNTER
  // See file readme.html for detailed instructions
  
  // Count unique visitors? 1 = YES, 0 = NO
  $count_unique = 0;
  
  // Number of hours a visitor is considered as "unique"
  $unique_hours = 24;
  
  // Minimum number of digits shown (zero-padding). Set to 0 to disable.
  $min_digits = 0;
  
  #############################
  #     DO NOT EDIT BELOW     #
  #############################
  
  /* Turn error notices off */
  error_reporting(E_ALL ^ E_NOTICE);
  
  /* Tell browsers not to cache the file output so we can count all hits */
  header("Cache-Control: no-store, no-cache, must-revalidate");
  header("Cache-Control: post-check=0, pre-check=0", false);
  header("Pragma: no-cache");
  
  /* Is page ID set? */
  if ( ! isset($_GET['page']) )
  {
      die('ERROR: The counter.php file must be called with a &lt;b&gt;?page=PAGEID&lt;/b&gt; parameter, for example &lt;b&gt;counter.php?page=test&lt;/b&gt;');
  }
  
  /* Remove any illegal chars from the page ID */
  $page = preg_replace('/[^a-zA-Z0-9\-_\.]/','',$_GET['page']);
  
  /* Stop if $page is not valid */
  if ( ! strlen($page) )
  {
      die('ERROR: Page ID is missing or contains only invalid chars. Please use only these chars for the page ID: a-z, A-Z, 0-9, &amp;quot;.&amp;quot;, &amp;quot;-&amp;quot; and &amp;quot;_&amp;quot;');
  }
  
  /* Set values for cookie and log file names */
  $cname   = 'tcount_unique_'.$page;
  $logfile = 'logs/' . $page . '.txt';
  
  /* Does the log file exist? */
  if ( ! file_exists($logfile) )
  {
      die('ERROR: Log file not found. Make sure there is a file called &lt;b&gt;' . $page . '.txt&lt;/b&gt; inside your &lt;b&gt;logs&lt;/b&gt; folder. On most servers file names are CaSe SeNSiTiVe!');
  }
  
  /* Open log file for reading and writing */
  if ($fp = @fopen($logfile, 'r+'))
  {
      /* Lock log file from other scripts */
      $locked = flock($fp, LOCK_EX);
  
      /* Lock successful? */
      if ($locked)
      {
          /* Let's read current count */
          $count = intval( trim( fread($fp, filesize($logfile) ) ) );
  
          /* If counting unique hits is enabled make sure it's a unique hit */
          if ( $count_unique == 0 || ! isset($_COOKIE[$cname]) )
          {
              /* Update count by 1 and write the new value to the log file */
              $count = $count + 1;
              rewind($fp);
              fwrite($fp, $count);
  
              /* Print the Cookie and P3P compact privacy policy */
              header('P3P: CP="NOI NID"');
              setcookie($cname, 1, time()+60*60*$unique_hours);
          }
      }
      else
      {
          /* Lock not successful. Better to ignore than to damage the log file */
          $count = 1;
      }
  
      /* Release file lock and close file handle */
      flock($fp, LOCK_UN);
      fclose($fp);
  }
  else
  {
      die("ERROR: Can't read/write to the log file ($logfile). Make sure this file is writable by PHP scripts. On UNIX servers, CHMOD the log file to 666 (rw-rw-rw-).");
  }
  
  /* Is zero-padding enabled? If yes, add zeros if required */
  if ($min_digits)
  {
      $count = sprintf('%0'.$min_digits.'s', $count);
  }
  
  /* Print out Javascript code and exit */
  echo 'document.write(\''.$count.'\');';
  exit();
  ?&gt;
  </code></pre>
  
  <p>And this is what i changed (at line 82):</p>
  
  <p>From:</p>
  
  <pre><code>/* Does the log file exist? */
  if ( ! file_exists($logfile) )
  {
      die('ERROR: Log file not found. Make sure there is a file called &lt;b&gt;' . $page . '.txt&lt;/b&gt; inside your &lt;b&gt;logs&lt;/b&gt; folder. On most servers file names are CaSe SeNSiTiVe!');
  }
  </code></pre>
  
  <p>To:</p>
  
  <pre><code>/* Does the log file exist? */
  if ( ! file_exists($logfile) )
  {
  fopen($logfile, 'w') or die("can't open file");
  }
  </code></pre>
  
  <p>So it created a new counter with the .txt for every different page by id like:</p>
  
  <pre><code>&lt;script language="Javascript" src="http://www.website.com/counter.php?page=&lt;?php echo $pageid();?&gt;"&gt;
  </code></pre>
  
  <p>But this is the error i'm getting when on a new id only on the first time when it's creating the .txt file:</p>
  
  <pre><code>Warning: fread() [function.fread]: Length parameter must be greater than 0 in /home/u716430538/public_html/counter14/counter.php on line 95
  document.write('1');
  </code></pre>
  
  <p>after then if you open back that same id it will show like normal:</p>
  
  <pre><code>document.write('1');
  </code></pre>
  
  <p>Sorry for my bad English, hope someone can help me.
  Thanks</p>