(PHP 4 >= 4.3.0, PHP 5)
image_type_to_mime_type -- Get Mime-Type for image-type returned by getimagesize, 
    exif_read_data, exif_thumbnail, exif_imagetype
Description
string 
image_type_to_mime_type ( int imagetype )
    The image_type_to_mime_type() function will determine 
    the Mime-Type for an IMAGETYPE constant.
    
| Example 1. image_type_to_mime_type (file) | 
<?phpheader("Content-type: " . image_type_to_mime_type(IMAGETYPE_PNG));
 ?>
 | 
 | 
   
    The returned values are as follows 
    
Table 1. Returned values Constants
| imagetype | Returned value | 
|---|
| IMAGETYPE_GIF | image/gif | 
| IMAGETYPE_JPEG | image/jpeg | 
| IMAGETYPE_PNG | image/png | 
| IMAGETYPE_SWF | application/x-shockwave-flash | 
| IMAGETYPE_PSD | image/psd | 
| IMAGETYPE_BMP | image/bmp | 
| IMAGETYPE_TIFF_II (intel byte order) | image/tiff | 
| IMAGETYPE_TIFF_MM (motorola byte order) | image/tiff | 
| IMAGETYPE_JPC | application/octet-stream | 
| IMAGETYPE_JP2 | image/jp2 | 
| IMAGETYPE_JPX | application/octet-stream | 
| IMAGETYPE_JB2 | application/octet-stream | 
| IMAGETYPE_SWC | application/x-shockwave-flash | 
| IMAGETYPE_IFF | image/iff | 
| IMAGETYPE_WBMP | image/vnd.wap.wbmp | 
| IMAGETYPE_XBM | image/xbm | 
    
Note: 
      This function does not require the GD image library.
     
    See also getimagesize(), 
    exif_imagetype(),
    exif_read_data() and
    exif_thumbnail().