Using PHX/Snippet to read filesize

return filesize($filePath);  

<?php
/**
 * Snippet Name: imageinfo
 * Short Desc: Get Image Information
 * Author: Lorenzo Stanco <[email protected]>
 * Version: 1.0.0
 * Last Edited: 21-04-2011
 */

  // ---------------------------------------------------
  // Config
  // ---------------------------------------------------
  // $filename: [string] name of original file, default directory: 'assets/images/'
  // $type:     [string] one of resolution|resolutionx|resolutiony|resolutionlabel|filesize
  //-----------------------------------------------------
  //
  // 
  // PARAMETERS
  // resolution: 4000 x 3000 px
  // resolutionx: 4000 
  // resolutiony: 3000 
  // resolutionlabel: XLarge
  // filesize: 5,45 MB
  // 
  //   
  // EXAMPLES
  // [[imageinfo? &filename=`[*img1*]` &type=`resolution`]]
  // [[imageinfo? &filename=`[*img1*]` &type=`resolutionlabel`]]
  // [[imageinfo? &filename=`[*img1*]` &type=`resolutionx`]]
  // [[imageinfo? &filename=`[*img1*]` &type=`resolutiony`]]
  // [[imageinfo? &filename=`[*img1*]` &type=`filesize`]]  
  //-----------------------------------------------------

$pathImg = ((substr($filename, 0, 7) == 'http://') ? $filename : 'assets/images/' . str_replace('assets/images/', '', $filename));

if ($type != 'filesize') {
	$imageinfo = getimagesize($pathImg);
	$x = $imageinfo[0];
	$y = $imageinfo[1];
}

switch ($type) {
	case 'filesize':
		$val = filesize($pathImg);
		$round = 2;
		$unit = array('','K','M','G','T','P','E','Z','Y');
		do { $val /= 1024; array_shift($unit); } while ($val >= 1000);
		return str_replace('.', ',', sprintf('%.' . intval($round) . 'f', $val)) . ' ' . array_shift($unit) . 'B';
	case 'resolution': 	
		return $x . ' x ' . $y . ' px';
	case 'resolutionx': 
		return $x;
	case 'resolutiony': 
		return $y;
	case 'resolutionlabel': 
		$sqp = $x * $y;
		if ($sqp >= 12000000) return 'XLarge';
		if ($sqp >= 4000000) return 'Large';
		if ($sqp >= 1800000) return 'Medium';
		if ($sqp >= 450000) return 'Small';
		return 'XSmall';
}

return '';
?>