apps.php

#! /usr/bin/php
<?php

class AndroidApp {
#0:      Trees for Cars by Leo Grand
#1: 0,99 $
#2: December 11, 2013
#3: Complete
#4: Android Apps
#5: Transportation
  var $name;
  var $price;
  var $currency;
  var $date;
  var $status;
  var $type;
  var $category;
  
  function fix_currency() {
    $curr = $this->price;
    
    if (strpos($curr, "\$") !== FALSE) {
      $this->currency = "USD";
      $this->price    = trim(substr($curr, 0, -1));
    }

    if (strpos($curr, "€") !== FALSE) {
      $this->currency = "EUR";
      $this->price    = trim(substr($curr, 0, -3));
    }

    if (strpos($curr, "£") !== FALSE) {
      $this->currency = "UKP";
      $this->price    = trim(substr($curr, 0, -3));
    }

    if (strpos($curr, "CHF") !== FALSE) {
      $this->currency = "CHF";
      $this->price    = trim(substr($curr, 0, -3));
    }
    if ($curr === "Free") {
      $this->currency = "EUR";
      $this->price    = "0.00";
    }
    
    $this->price = str_replace(",", ".", $this->price);
    $this->price += 0.00;
    return;
  }
  
  function __construct($c) {
    $a = array();
    
    for ($i=0; $i<6; $i++) {
      if ($c->eof())
        return;

      $a[] = trim($c->fgets());
    }

    $this->name     = $a[0];
    $this->price    = $a[1];
    $this->date     = $a[2];
    $this->status   = $a[3];
    $this->type     = $a[4];
    $this->category = $a[5];

    $this->fix_currency();

    return $this;
  }
}


try {
  $file = new SplFileObject("apps.txt");
} catch (RuntimeException $e) {
  die($e->getMessage(). "\n");
};
$file->setFlags(SplFileObject::DROP_NEW_LINE);

$apps = array();
while (!$file->eof()) {
  $a = new AndroidApp($file);
  if (!$file->eof())
    $apps[] = $a;
}

foreach ($apps as $k => $v) {
  $currency[$v->currency]['sum']   += $v->price;
  $currency[$v->currency]['count'] ++;
  $currency[$v->currency]['title'] .= $v->price >0?"{$v->name} for {$v->price}\n":"";
}

print_r($currency);