Quickly tells some info about a directory of text files

code-info.php

#!/usr/bin/php
<?php # Axiixc [ 2010 ]

function exByteSize($bytes) 
{
   $size = $bytes / 1024;
   if ($size < 1024)
   {
      $size = number_format($size, 2);
      $size .= ' KB';
   } 
   else 
   {
      if ($size / 1024 < 1024) 
      {
         $size = number_format($size / 1024, 2);
         $size .= ' MB';
      } 
      else if ($size / 1024 / 1024 < 1024)  
      {
         $size = number_format($size / 1024 / 1024, 2);
         $size .= ' GB';
      }
      else if ($size / 1024 / 1024 / 1024 < 1024)
      {
         $size = number_format($size / 1024 / 1024 / 1024, 2);
         $size .= ' TB';
      }
   }
   
   return $size;
}

$input = $argv[1];
$files = array();
if (is_dir($input))
{
   $files = scandir($input);
   foreach ($files as $key => $value)
      $files[$key] = $input . '/' . $value;
}
else
   $files[] = $input;

$numLines = 0;
$numFiles = 0;
$size = 0;

foreach ($files as $file)
{
   if (substr($file, -9) != '.DS_Store' && !is_dir($file))
   {
      $numLines += count(file($file));
      $numFiles++;
      $size = filesize($file);
   }
}

printf("Files %d\nLines %d\nSize  %s\n", $numFiles, $numLines, exByteSize($size));