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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 |
---|---|
954 | * Filters the arguments used to generate a Pages drop-down element. |
955 | * |
956 | * @since 3.3.0 |
957 | * |
958 | * @see wp_dropdown_pages() |
959 | * |
960 | * @param array $dropdown_args Array of arguments used to generate the pages drop-down. |
961 | * @param WP_Post $post The current post. |
962 | */ |
963 | $dropdown_args = apply_filters( 'page_attributes_dropdown_pages_args', $dropdown_args, $post ); |
964 | $pages = wp_dropdown_pages( $dropdown_args ); |
965 | if ( ! empty( $pages ) ) : |
966 | ?> |
967 | <p class="post-attributes-label-wrapper parent-id-label-wrapper"><label class="post-attributes-label" for="parent_id"><?php _e( 'Parent' ); ?></label></p> |
968 | <?php echo $pages; ?> |
969 | <?php |
970 | endif; // End empty pages check. |
971 | endif; // End hierarchical check. |
972 |
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