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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.
This hook occurs 2 times in this file.
Line | Code |
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423 |
|
424 | // Update the attachment |
425 | wp_insert_attachment($object, $cropped); |
426 | wp_update_attachment_metadata( $_POST['attachment_id'], wp_generate_attachment_metadata( $_POST['attachment_id'], $cropped ) ); |
427 |
|
428 | set_theme_mod('header_image', $url); |
429 |
|
430 | // cleanup |
431 | $medium = str_replace(basename($original), 'midsize-'.basename($original), $original); |
432 | @unlink( apply_filters( 'wp_delete_file', $medium ) ); |
433 | @unlink( apply_filters( 'wp_delete_file', $original ) ); |
434 |
|
435 | return $this->finished(); |
436 | } |
437 |
|
438 | /** |
439 | * Display last step of custom header image page. |
440 | * |
441 | * @since unknown |
442 | */ |