Squid Log Parser

I was twisting my head trying to figure the best way to fetch data from the squid log server for a new internal statistic project at work, when I decided to make a parser myself rather than trying to find a pre-made parser and adjust it to fit my needs. After over 4 different prototypes getting a no-go from our DBA - the script had to insert rows in intervals - I finally made myself and the DBA happy.

The script is free to use, but please keep the copyright.

/**
        * File for parsing squid logs
        *
        * This file fetches lines from the squid log on the squid server and parsing the data to a mysql database
        * link http://phun-ky.net/2007/03/squid-log-parser
        * author Alexander Vassbotn Røyne 
        * license Creative Commons, see http://phun-ky.net/license for more information
        * version 1.1
        * name UMedia SquidParser 1.1
        */
        /**
         * Uncheck for error checking
         */
        #ini_set(error_reporting(E_ALL ^ E_NOTICE),0);
        #ini_set('display_errors', 1);
       /**
        * Connects to the database
        */
        $con = mysql_connect("127.0.0.1", 'username', 'password');
        if (!$con) {
             die("Could not connect: " . mysql_error());
        }
        mysql_select_db('databasename');
        $log = 'tail -f /path/to/squid/access.log 2>&1';
        $handle = popen($log, 'r');
        $replace = array('www.','.no');
        $lastMinute = date('i');
        while(!feof($handle)){
               $line = fgets($handle);
               /**
                * A very simple preg_match() to get the desired chunks, could be made better and more safe
                */
               preg_match ('/http:\/\/(\S*)\/\S* \S* \S* (\S*) /iU' , $line, $chunks);
               $host = str_replace($replace,'',$chunks[1]);
               $sites[$host] += $chunks[2];
               $minute = date('i');
               settype($minute, 'integer');
               /**
                * This script is set to fetch the bytes and add them up, insert them in the database each 5 minutes
                * The script was intended on a system with log rotation each 2 hours, so some quirks was made to start
                * it again when the file was renamed.
                */
               if((($minute%5) == 0) && ($lastMinute != date('i'))){
                    $lastMinute = date('i');
                    settype($lastMinute, 'integer');
                    foreach($sites as $site => $bytes){
                            $sql = 'INSERT INTO tableName VALUES ( ''.$site.'',''.$bytes.'',''.date('Y-m-d H:i:s').'')';
                            echo $sql.'\n';
                            mysql_query($sql, $con);
                    }
                    unset($sites);
                    unset($sql);
               }
        }
        pclose($handle);
        mysql_close($con);