<?php
    /**
    * A class for showing progress bars in the console.
    */
    class Console_ProgressBar
    {
        /**
        * The progress
        * @var integer
        */
        private $progress = 0;
        
        /**
        * The maximum "widgets" the progress bar has to represent
        * @var integer
        */
        private $max;

        /**
        * Creates the progress bar object
        *
        * @param int The mximum "widgets" that the progress has to represnt
        * @return obj The Console_ProgressBar object
        */
        public function __construct($max = 100)
        {
            $this->max = $max;
        }

        /**
        * Updates the progress bar
        */
        public function Update($update = 1)
        {
            $this->progress += $update;

            $pc   = ($this->progress / $this->max) * 100;
            $bars = round(($pc * 50) / 100);

            echo "\r[" . str_repeat('=', $bars) . '>'. str_repeat(' ', 50 - $bars) . "] " . sprintf('%02d', $pc) . '%';
        }
    }
    
?>