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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.
Line | Code |
---|---|
530 | $post->iconsize = array($width, $max_dims[1]); |
531 | } |
532 | } else { |
533 | $post->iconsize = array($imagesize[0], $imagesize[1]); |
534 | } |
535 | } |
536 |
|
537 | $icon = "<img src=\"{$src}\" title=\"{$post->post_title}\" alt=\"{$post->post_title}\" {$constraint}/>"; |
538 |
|
539 | return apply_filters('attachment_icon', $icon, $post->ID); |
540 | } |
541 |
|
542 | function get_attachment_innerHTML($id = 0, $fullsize = false, $max_dims = false) { |
543 | $id = (int) $id; |
544 |
|
545 | if ( $innerHTML = get_attachment_icon($id, $fullsize, $max_dims)) |
546 | return $innerHTML; |
547 |
|
548 | $post = & get_post($id); |