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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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980 |
|
981 | /** |
982 | * Filters the HTML output of page links for paginated posts. |
983 | * |
984 | * @since 3.6.0 |
985 | * |
986 | * @param string $output HTML output of paginated posts' page links. |
987 | * @param array $args An array of arguments. |
988 | */ |
989 | $html = apply_filters( 'wp_link_pages', $output, $args ); |
990 |
|
991 | if ( $r['echo'] ) { |
992 | echo $html; |
993 | } |
994 | return $html; |
995 | } |
996 |
|
997 | /** |
998 | * Helper function for wp_link_pages(). |