関数 wp_find_hierarchy_loop()
定義ファイル :/blog/wp-includes/functions.php 21
wp_find_hierarchy_loop()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | /** * Find hierarchy loops using a callback function that maps object IDs to parent IDs. * * @since 3.1.0 * @access private * * @param callback $callback Function that accepts ( ID, $callback_args ) and outputs parent_ID. * @param int $start The ID to start the loop check at. * @param int $start_parent The parent_ID of $start to use instead of calling $callback( $start ). * Use null to always use $callback * @param array $callback_args Optional. Additional arguments to send to $callback. * @return array IDs of all members of loop. */ function wp_find_hierarchy_loop( $callback, $start, $start_parent, $callback_args = array() ) { $override = is_null( $start_parent ) ? array() : array( $start => $start_parent ); if ( !$arbitrary_loop_member = wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override, $callback_args ) ) return array(); return wp_find_hierarchy_loop_tortoise_hare( $callback, $arbitrary_loop_member, $override, $callback_args, true ); } |