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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 |
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141 | if ( '' != $pagestruct && 'draft' != $post->post_status ) { |
142 | $link = get_page_uri($id); |
143 | $link = str_replace('%pagename%', $link, $pagestruct); |
144 | $link = get_option('home') . "/$link"; |
145 | $link = user_trailingslashit($link, 'page'); |
146 | } else { |
147 | $link = get_option('home') . "/?page_id=$id"; |
148 | } |
149 |
|
150 | return apply_filters( '_get_page_link', $link, $id ); |
151 | } |
152 |
|
153 | function get_attachment_link($id = false) { |
154 | global $post, $wp_rewrite; |
155 |
|
156 | $link = false; |
157 |
|
158 | if (! $id) { |
159 | $id = (int) $post->ID; |