getimagesizefromstring
  Get the size of an image from a string
  
 
  Description
  
   array getimagesizefromstring
    ( string $imagedata
   [, array &$imageinfo
  ] )
  
  
   See the getimagesize documentation for details on how this
   function works.
  
  
 
  Parameters
  
   - 
    imagedata
- 
     
      The image data, as a string.
      
- 
    imageinfo
- 
     
      See getimagesize.
      
 
 
  Return Values
  
   See getimagesize.
  
  
 
  Examples
  
   
    Example #1 getimagesizefromstring example
    
<?php
$img = '/path/to/test.png';
// Open as a file
$size_info1 = getimagesize($img);
// Or open as a string
$data       = file_get_contents($img);
$size_info2 = getimagesizefromstring($data);
?>