WordPress添加元框允許HTML

Question

我已經設置了一個所有工作正常的元框，但是我想接受HTML，或者只是真正的類。我試圖在這個代碼工作，但它不，我不知道這是爲什麼。

我的代碼是：

/** 
* Adds a box to the main column on the Page edit screens. 
*/ 

function myplugin_add_meta_box() { 

$screens = array('page'); 

foreach ($screens as $screen) { 

    add_meta_box(
     'myplugin_sectionid', 
     __('Page Intro Text in Header', 'myplugin_textdomain'), 
     'myplugin_meta_box_callback', 
     $screen 
    ); 
} 
} 
add_action('add_meta_boxes', 'myplugin_add_meta_box'); 

/** 
* Prints the box content. 
* 
* @param WP_Post $post The object for the current post/page. 
*/ 
function myplugin_meta_box_callback($post) { 

// Add an nonce field so we can check for it later. 
wp_nonce_field('myplugin_meta_box', 'myplugin_meta_box_nonce'); 

/* 
* Use get_post_meta() to retrieve an existing value 
* from the database and use the value for the form. 
*/ 
$value = get_post_meta($post->ID, 'pageintro', true); 
echo '<input type="text" id="myplugin_new_field" name="myplugin_new_field" value="' . esc_html($value) . '" style="width: 100%;" />'; 
} 

/** 
* When the post is saved, saves our custom data. 
* 
* @param int $post_id The ID of the post being saved. 
*/ 
function myplugin_save_meta_box_data($post_id) { 

/* 
* We need to verify this came from our screen and with proper authorization, 
* because the save_post action can be triggered at other times. 
*/ 

// Check if our nonce is set. 
if (! isset($_POST['myplugin_meta_box_nonce'])) { 
    return; 
} 

// Verify that the nonce is valid. 
if (! wp_verify_nonce($_POST['myplugin_meta_box_nonce'], 'myplugin_meta_box')) { 
    return; 
} 

// If this is an autosave, our form has not been submitted, so we don't want to do anything. 
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) { 
    return; 
} 

// Check the user's permissions. 
if (isset($_POST['post_type']) && 'page' == $_POST['post_type']) { 

    if (! current_user_can('edit_page', $post_id)) { 
     return; 
    } 

} else { 

    if (! current_user_can('edit_post', $post_id)) { 
     return; 
    } 
} 

/* OK, it's safe for us to save the data now. */ 

// Make sure that it is set. 
if (! isset($_POST['myplugin_new_field'])) { 
      return; 
    } 
    // WP's default allowed tags 
    global $allowedtags; 

    // allow iframe only in this instance 
    $span = array('<span>' => array(
         '<span>' => array() 
         )); 

    $allowed_html = array_merge($allowedtags, $span); 

// Sanitize user input. 
$my_data = sanitize_text_field($_POST['myplugin_new_field'], $allowed_html); 

// Update the meta field in the database. 
update_post_meta($post_id, 'pageintro', $my_data); 
} 

// save the text input 
if (isset($_POST['myplugin_new_field'])) { 
    // Sanitize user input. 
    $my_data = sanitize_text_field($_POST['myplugin_new_field']); 
    // Update the meta field in the database. 
    update_post_meta($post_id, 'pageintro', $my_data); 
} 

add_action('save_post', 'myplugin_save_meta_box_data'); 

什麼我需要改變，以得到這個工作？

謝謝。

Answer 1

針對HTML使用到達的文本區域是在WordPress非常有益的，並且還即時拍攝在默認folow中此代碼

$值= get_post_meta（$後> ID， 'pageintro'，TRUE）;

wp_editor($meta, $field['id'], $settings); 

    $this->show_field_end($field, $meta);