使您$default_pages 数组是关联的数组，其中键是页面标题，值是页面内容。然后修改foreach循环以获取$key => $value 配对并将其用于wp_insert_post 作用像这样：

function default_pages( $blog_id )
{
$default_pages = array(
    \'Contact\'     => "This is your \'Contact\' page. Enter in your content here.",
    \'Information\' => "This is your \'Information\' page. Enter in your content here.",
    \'About\'       => "This is your \'About\' page. Enter in your content here.",
    \'Home\'        => "This is your \'Home\' page. Enter in your content here.",
);

switch_to_blog( $blog_id );

if ( $current_pages = get_pages() )
    $default_pages = array_diff( $default_pages, wp_list_pluck( $current_pages, \'post_title\' ) );

foreach ( $default_pages as $page_title => $page_content ) {        
    $data = array(
        \'post_title\'   => $page_title,
        \'post_content\' => $page_content,
        \'post_status\'  => \'publish\',
        \'post_type\'    => \'page\',
    );

    wp_insert_post( add_magic_quotes( $data ) );
}

restore_current_blog();
}

add_action( \'wpmu_new_blog\', \'default_pages\' );