wordpress函数如何查询友情链接详情（get_bookmark）

wordpress如何利用自带函数​查询友情链接详情，下面web建站小编给大家简单介绍一下get_bookmark函数的运用！

函数原型：

get_bookmark( int|stdClass $bookmark, string $output = OBJECT, string $filter = 'raw' ): array|object|null

参数说明：

函数源码：

function get_bookmark( $bookmark, $output = OBJECT, $filter = 'raw' ) {
  global $wpdb;
  
  if ( empty( $bookmark ) ) {
    if ( isset( $GLOBALS['link'] ) ) {
      $_bookmark = & $GLOBALS['link'];
    } else {
      $_bookmark = null;
    }
  } elseif ( is_object( $bookmark ) ) {
    wp_cache_add( $bookmark->link_id, $bookmark, 'bookmark' );
    $_bookmark = $bookmark;
  } else {
    if ( isset( $GLOBALS['link'] ) && ( $GLOBALS['link']->link_id == $bookmark ) ) {
      $_bookmark = & $GLOBALS['link'];
    } else {
      $_bookmark = wp_cache_get( $bookmark, 'bookmark' );
      if ( ! $_bookmark ) {
      	$_bookmark = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->links WHERE link_id = %d LIMIT 1", $bookmark ) );
      	if ( $_bookmark ) {
      	  $_bookmark->link_category = array_unique( wp_get_object_terms( $_bookmark->link_id, 'link_category', array( 'fields' => 'ids' ) ) );
      	  wp_cache_add( $_bookmark->link_id, $_bookmark, 'bookmark' );
      	}
      }
    }
  }
  
  if ( ! $_bookmark ) {
    return $_bookmark;
  }
  
  $_bookmark = sanitize_bookmark( $_bookmark, $filter );
  
  if ( OBJECT === $output ) {
    return $_bookmark;
  } elseif ( ARRAY_A === $output ) {
    return get_object_vars( $_bookmark );
  } elseif ( ARRAY_N === $output ) {
    return array_values( get_object_vars( $_bookmark ) );
  } else {
    return $_bookmark;
  }
}

调用方法：

<?php 
  $bookmark = get_bookmark(10);
  echo $bookmark->link_name; 
?>

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