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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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1037 | $exclude_array = ( $r['exclude'] ) ? explode( ',', $r['exclude'] ) : array(); |
1038 |
|
1039 | /** |
1040 | * Filter the array of pages to exclude from the pages list. |
1041 | * |
1042 | * @since 2.1.0 |
1043 | * |
1044 | * @param array $exclude_array An array of page IDs to exclude. |
1045 | */ |
1046 | $r['exclude'] = implode( ',', apply_filters( 'wp_list_pages_excludes', $exclude_array ) ); |
1047 |
|
1048 | // Query pages. |
1049 | $r['hierarchical'] = 0; |
1050 | $pages = get_pages( $r ); |
1051 |
|
1052 | if ( ! empty( $pages ) ) { |
1053 | if ( $r['title_li'] ) { |
1054 | $output .= '<li class="pagenav">' . $r['title_li'] . '<ul>'; |
1055 | } |