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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 |
|---|---|
| 940 | $parsed_args = wp_parse_args( $args, $defaults ); |
| 941 | |
| 942 | /** |
| 943 | * Filters the arguments used in retrieving page links for paginated posts. |
| 944 | * |
| 945 | * @since 3.0.0 |
| 946 | * |
| 947 | * @param array $parsed_args An array of arguments for page links for paginated posts. |
| 948 | */ |
| 949 | $parsed_args = apply_filters( 'wp_link_pages_args', $parsed_args ); |
| 950 | |
| 951 | $output = ''; |
| 952 | if ( $multipage ) { |
| 953 | if ( 'number' == $parsed_args['next_or_number'] ) { |
| 954 | $output .= $parsed_args['before']; |
| 955 | for ( $i = 1; $i <= $numpages; $i++ ) { |
| 956 | $link = $parsed_args['link_before'] . str_replace( '%', $i, $parsed_args['pagelink'] ) . $parsed_args['link_after']; |
| 957 | if ( $i != $page || ! $more && 1 == $page ) { |
| 958 | $link = _wp_link_page( $i ) . $link . '</a>'; |