Question

我创建了一个if语句来检查当前的wordpress页面/帖子是否有特征图像集。如果不是，我希望脚本回显占位符图像的URI。脚本运行时没有任何PHP错误，但是当没有可用的功能映像时，它会回显以下background: url(h)而不是占位符的URI。我可以看到问题出在内联回显$image[0]但是我不知道如何解决这个问题。

  <?php if(is_home()) {
      $image = wp_get_attachment_image_src(get_post_thumbnail_id(get_option('page_for_posts')),'full');
    } elseif (has_post_thumbnail($post->ID)) {
      $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'single-post-thumbnail, page_for_posts' );
    } else {
      $image = get_template_directory_uri() . '/assets/images/placeholder.png';
    }
  ?>

  <div class="hero-inner" style="background: url(<?php echo $image[0]; ?>) no-repeat center center; background-size: cover;">
     [...] 
  </div>

Answer 1

if(is_home()) {
      $image = wp_get_attachment_image_src(get_post_thumbnail_id(get_option('page_for_posts')),'full');
    } elseif (has_post_thumbnail($post->ID)) {
      $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'single-post-thumbnail, page_for_posts' );
    } 

    if($image){
        $image = $image[0];
        }
            else {
      $image = get_template_directory_uri() . '/assets/images/placeholder.png';
    }
  ?>

  <div class="hero-inner" style="background: url(<?php echo $image; ?>) no-repeat center center; background-size: cover;">
     [...] 
  </div>

Answer 2

将var $ image更改为$ image [0]以获取最后的其他内容。

 <?php if(is_home()) {
      $image = wp_get_attachment_image_src(get_post_thumbnail_id(get_option('page_for_posts')),'full');
    } elseif (has_post_thumbnail($post->ID)) {
      $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'single-post-thumbnail, page_for_posts' );
    } else {
      $image[0] = get_template_directory_uri() . '/assets/images/placeholder.png';
    }
  ?>

  <div class="hero-inner" style="background: url(<?php echo $image[0]; ?>) no-repeat center center; background-size: cover;">
     [...] 
  </div>

Wordpress if语句没有回显正确的URI

2 个答案: