WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 343 | function file_is_displayable_image($path) { |
| 344 | $info = @getimagesize($path); |
| 345 | if ( empty($info) ) |
| 346 | $result = false; |
| 347 | elseif ( !in_array($info[2], array(IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG)) ) // only gif, jpeg and png images can reliably be displayed |
| 348 | $result = false; |
| 349 | else |
| 350 | $result = true; |
| 351 | |
| 352 | return apply_filters('file_is_displayable_image', $result, $path); |
| 353 | } |
| 354 | |
| 355 | /** |
| 356 | * Load an image resource for editing. |
| 357 | * |
| 358 | * @since 2.9.0 |
| 359 | * |
| 360 | * @param string $attachment_id Attachment ID. |
| 361 | * @param string $mime_type Image mime type. |