image2wbmp
  Output image to browser or file
  
 
  Description
  
   bool image2wbmp
    ( resource $image
   [, string $filename
   [, int $threshold
  ]] )
  
  
 
  Parameters
  
   
    - 
image
- 
An image resource, returned by one of the image creation functions,
such as imagecreatetruecolor. 
- 
     filename
- 
      
       Path to the saved file. If not given, the raw image stream will be
       outputted directly.
       
- 
     threshold
- 
      
       Threshold value, between 0 and 255 (inclusive).
       
 
 
  Return Values
  
   Returns TRUE on success or FALSE on failure.
  
  
 
  Examples
  
   
    Example #1 image2wbmp example
    
<?php
$file = 'php.png';
$image = imagecreatefrompng($file);
header('Content-Type: ' . image_type_to_mime_type(IMAGETYPE_WBMP));
image2wbmp($image); // output the stream directly
imagedestroy($image);
?>
     
    
  
  
 
  Notes
  Note: 
   
    WBMP support is only available if PHP was compiled against GD-1.8 or
    later.