如何从使用自定义查询获取的wordpress的post_content中删除所有可视化作曲家短代码/标签

Question

我正在开发一个Web服务（API），我正在获取结果WP_query（）函数并以JSON格式解析它。这将进一步用于Android应用程序。问题是我得到的post_content查询由视觉作曲家组成，整个内容是这样的标签形式，如

[VC_ROW][/VC_ROW][VC_COLUMN]some text[/VC_COLUMN] etc.

我想从内容中删除/删除所有这些短代码，并从中检索纯文本。是否有任何视觉作曲家功能，通过它我可以实现这一点

<?php
require('../../../wp-load.php');
require_once(ABSPATH . 'wp-includes/functions.php');
require_once(ABSPATH . 'wp-includes/shortcodes.php');
header('Content-Type: application/json');

$post_name = $_REQUEST['page'];

if($post_name!=''){
    if($post_name=='services') {

    $args = array(
        'post_parent' => $page['services']['id'],
        'post_type'   => 'page', 
        'post_status' => 'published' 
    ); 
    $posts = get_children($args);
    foreach($posts as $po){
        $services_array[] = array('id'=>$po->ID,'title'=>$po->post_title,'image'=>get_post_meta($po->ID, 'webservice_page_image',true),'description'=>preg_replace("~(?:\[/?)[^/\]]+/?\]~s", '', $po->post_content));
    }

    $post = array(
        'status'=>'ok', 
        'services'=>$services_array
    );
    echo json_encode($post);
}
}
?>

Answer 1

在这里，您可以尝试在阵列中轻松添加一些所需的短代码，也可以通过以下代码删除所有短代码。

$the_content = '[VC_ROW][VC_COLUMN]some text1[/VC_COLUMN] etc.[/VC_ROW][VC_COLUMN_INNTER width="1/3"][/VC_COLUMN_INNTER]';

$shortcode_tags = array('VC_COLUMN_INNTER');
$values = array_values( $shortcode_tags );
$exclude_codes  = implode( '|', $values );

// strip all shortcodes but keep content
// $the_content = preg_replace("~(?:\[/?)[^/\]]+/?\]~s", '', $the_content);

// strip all shortcodes except $exclude_codes and keep all content
$the_content = preg_replace( "~(?:\[/?)(?!(?:$exclude_codes))[^/\]]+/?\]~s", '', $the_content );
echo $the_content;

你想保留一些短代码，你不能使用strip_shortcodes()。

Answer 2

最佳解决方案，已解决 只需将以下代码添加到文件wp-includes / rest-api.php的底部：

/**
 * Modify REST API content for pages to force
 * shortcodes to render since Visual Composer does not
 * do this
 */
add_action( 'rest_api_init', function ()
{
   register_rest_field(
          'page',
          'content',
          array(
                 'get_callback'    => 'compasshb_do_shortcodes',
                 'update_callback' => null,
                 'schema'          => null,
          )
       );
});

function compasshb_do_shortcodes( $object, $field_name, $request )
{
   WPBMap::addAllMappedShortcodes(); // This does all the work

   global $post;
   $post = get_post ($object['id']);
   $output['rendered'] = apply_filters( 'the_content', $post->post_content );

   return $output;
}

Answer 3

我把它带到某个地方并稍微更新一下，以便更好地工作:)。在functions.php中添加此函数：

/** Function that cuts post excerpt to the number of a word based on previously set global * variable $word_count, which is defined below */

if(!function_exists('kc_excerpt')) {

  function kc_excerpt($excerpt_length = 20) {

    global $word_count, $post;

    $word_count = $excerpt_length;

    $post_excerpt = get_the_excerpt($post) != "" ? get_the_excerpt($post) : strip_tags(do_shortcode(get_the_content($post)));

    $clean_excerpt = strpos($post_excerpt, '...') ? strstr($post_excerpt, '...', true) : $post_excerpt;

    /** add by PR */

    $clean_excerpt = strip_shortcodes(remove_vc_from_excerpt($clean_excerpt));
    /** end PR mod */

    $excerpt_word_array = explode (' ',$clean_excerpt);

    $excerpt_word_array = array_slice ($excerpt_word_array, 0, $word_count);

    $excerpt = implode (' ', $excerpt_word_array).'...'; echo ''.$excerpt.'';

  }
}

然后你通常称它为kc_excerpt(20);，它将返回正常的post_content / excerpt