我刚刚遇到了同样的问题，下面是我的解决方案。我使用globals获取当前页面和总页面数：

/* first i\'m looking into $multipage global to check 
if the post actually has pages */
global $multipage;

if ( $multipage === 1 ) {
    global $page; // this is current page number
    global $numpages; // this is total page count

    // display disabled left arrow on page 1
    if ( 1 === $page ) :
    ?>
        <span class="pagination__arrow pagination__arrow--prev pagination__arrow--disabled">< Previous</span>
        <span class="pagination__separator"> | </span>
    <?php 
    endif;

    // standard wp pagination
    wp_link_pages( [
        \'next_or_number\'   => \'next\',
        \'before\'           => \'\',
        \'previouspagelink\' => \'<span class="pagination__arrow pagination__arrow--prev">< Previous</span>\',
        \'nextpagelink\'     => \'<span class="pagination__arrow pagination__arrow--next">Next ></span>\',
        \'separator\'        => \'<span class="pagination__separator">|</span>\',
    ] );

    // display disabled right arrow on last page
    if ( $page === $numpages ) :
    ?>
        <span class="pagination__separator"> | </span>
        <span class="pagination__arrow pagination__arrow--next pagination__arrow--disabled">Next ></span>
    <?php
    endif;

}

你可以看看这个wp_link_pages Function