<?php

/*
  This class can be use for Comparing Files
 *
 */

/**
 * Description of vbinary
 * * @author server
 */
class vbinary {


    private $files = array();
    private $seek;
    public $result = array();

    public function __construct($files=array()) {
        if (is_array($files) && count($files)>=2) {

            $this->files = $files;
            $max = null;
            foreach ($this->files as $max_size) {
                if (filesize($max_size) > $max)
                    $max = filesize($max_size);
            }
            $this->seek = rand(10, $max);
        }else throw new Exception ("Must be more files", 500);
    }

    public function compare() {

        echo "compare Start";

        $current = array_shift($this->files);
        $keys = array();
        $c = 0;
        echo $current;


        foreach ($keys as $k) {

            $c++;
            $f = fopen($current, "r");
            $keys[] = fread($f, $this->seek - $c);
            fclose($f);
        }
        reset($this->files);
        next($this->files);
        $c = 0;

        foreach ($this->files as $file) {

            $fin=new finfo(FILEINFO_MIME);
            
              if ( $fin->file($file) == $fin->file($current)){


            $dfi = array();
            $f = fopen($file, "r");
               foreach ($keys as $value) {
                $c++;
                $dfi[] = fread($f, $this->seek - $c);
            }
            fclose($f);
            $resul=round((count(array_diff($keys, $dfi)) - (filesize($current) - filesize($file))) / 100);
            if ($resul == 0 ) {
                // same as current
                $this->result[] = 100;
            } elseif($resul < 0 ) {
                $this->result[] = 0 ;
            }else $this->result[]= $resul;


        }
        }
    }

}

?>