February 11, 2011 
Definition:
function file_is_displayable_image($path) {}
Validate that file is suitable for displaying within a web page.
Parameters
- string $path: File path to test.
Return values
returns:True if suitable, false if not suitable.
Defined filters
- file_is_displayable_image
apply_filters('file_is_displayable_image', $result, $path)
Source code
function file_is_displayable_image($path) {
$info = @getimagesize($path);
if ( empty($info) )
$result = false;
elseif ( !in_array($info[2], array(IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG)) ) // only gif, jpeg and png images can reliably be displayed
$result = false;
else
$result = true;
return apply_filters('file_is_displayable_image', $result, $path);
}
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