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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 |
---|---|
2030 | $id = (int) $id; |
2031 | if ( !$post = get_post($id) ) |
2032 | return false; |
2033 |
|
2034 | if ( $innerHTML = get_attachment_icon($post->ID, $fullsize, $max_dims)) |
2035 | return $innerHTML; |
2036 |
|
2037 | $innerHTML = esc_attr($post->post_title); |
2038 |
|
2039 | return apply_filters('attachment_innerHTML', $innerHTML, $post->ID); |
2040 | } |
2041 |
|
2042 | /** |
2043 | * Retrieve bookmark data based on ID. |
2044 | * |
2045 | * @since 2.0.0 |
2046 | * @deprecated 2.1.0 |
2047 | * @deprecated Use get_bookmark() |
2048 | * @see get_bookmark() |