PHP Wordpress错误 - 网站无法正常工作

Question

Seem to be having this error when uploading the new theme onto my wordpress website.

The error is as follows.

Fatal error: Can't use function return value in write context in /home/squatz1/public_html/justserviceofny.com/wp-content/themes/justserviceofny - NEW SITE/front-page.php on line 16

Here is the entire code if this helps.

 <?php

/**
 * Home Page template
 *
 * @package WordPress
 * @subpackage JustServiceOfNewYork
 * @since JustServiceOfNewYork 1.0
 */

get_header();

?>

<div class="home-banner" style="background: url('<?= ot_get_option('home-banner'); ?>');
  <?= !empty(ot_get_option('home-banner-height')) ? 'height:' . ot_get_option('home-banner-height') . 'px;' : ''; ?>"
></div>

<div class="content-wrapper">
  <div class="main-content">
    <?php
    // Start the loop.
    while ( have_posts() ) : the_post();
      get_template_part( 'template-parts/content', 'home' );
    endwhile; // End the loop.
    ?>
  </div><!--.main-content-->

  <?php if ( vct_get_sidebar_class() ) : ?>
    <?php get_sidebar(); ?>
  <?php endif; ?>

</div><!--.content-wrapper-->

<?php get_footer();

Answer 1

Most probably thats because you are using empty() on a function return, in following line:

!empty(ot_get_option('home-banner-height')) ? 'height:' ....

change this line to

ot_get_option('home-banner-height') ? 'height:'...

just remove the !empty()