WordPress 4.4中的新内容分页过滤器自WordPress 4.4起，我们可以使用content_pagination 过滤器（参见票据#9911 )

/**
 * Filter the "pages" derived from splitting the post content.
 *
 * "Pages" are determined by splitting the post content based on the presence
 * of `<!-- nextpage -->` tags.
 *
 * @since 4.4.0
 *
 * @param array   $pages Array of "pages" derived from the post content.
 *                       of `<!-- nextpage -->` tags..
 * @param WP_Post $post  Current post object.
 */
 $pages = apply_filters( \'content_pagination\', $pages, $post );

此筛选器位于setup_postdata() 的方法WP_Query 类并将使修改分页页更容易。

下面是几个如何删除内容分页的示例（PHP 5.4+）：

示例#1

/**
 * Disable content pagination
 *
 * @link http://wordpress.stackexchange.com/a/208784/26350
 */
add_filter( \'content_pagination\', function( $pages )
{
    $pages = [ join( \'\', $pages ) ];
    return $pages;
} );

/**
 * Disable content pagination in the main loop
 *
 * @link http://wordpress.stackexchange.com/a/208784/26350
 */
add_filter( \'content_pagination\', function( $pages )
{
    if ( in_the_loop() )
        $pages = [ join( \'\', $pages ) ];

    return $pages;
} );

/**
 * Disable content pagination for post post type in the main loop
 *
 * @link http://wordpress.stackexchange.com/a/208784/26350
 */
add_filter( \'content_pagination\', function( $pages, $post )
{
    if ( in_the_loop() && \'post\' === $post->post_type )
        $pages = [ join( \'\', $pages ) ];

    return $pages;
}, 10, 2 );

您可以通过剥离nextpage 帖子内容外的标记：

function kill_pages($posts,$qry) {
 if ($qry->is_single()) {
  $posts[0]->post_content = preg_replace( \'/<!--nextpage(.*?)?-->/\', \'\',  $posts[0]->post_content );
 }
 return $posts;
}
add_filter(\'the_posts\',\'kill_pages\',1,2);