如何使用Wordpress

Question

我在functions.php的回聲在前端後端的動態選擇的類別

//Example of select field 
    $this->settings['select'] = array(
     'section' => 'general', 
     'title' => __('Example Select'), 
     'desc' => __('This is a description for the drop-down.'), 
     'type' => 'select', 
     'std'  => '', 
     'choices' => array(
      'choice1' => 'Choice 1', 
      'choice2' => 'Choice 2', 
      'choice3' => 'Choice 3' 
     ) 
    ); 

//Here i have managed to echo the categories dynamically in the back-end 
$args = array(
      'orderby' => 'name', 
      'order' => 'ASC', 
      'hide_empty' => 0 
     ); 
$categories = get_categories($args); 
$categories_name = array(); 
foreach($categories as $category){ 
    $categories_name[] = $category->name; 
} 

    $this->settings['categoriesmain1'] = array(
      'section' => 'general', 
      'title' => __('Select Left Block Category'), 
      'desc' => __('Here you can select the main category for main left block.'), 
      'type' => 'select', 
      'std'  => '', 
      'choices' => $categories_name // this returns the category names in a select field 
     ); 
    $settings = get_option('mytheme_options'); 
    $my_choices_cat1 = $settings['categoriesmain1']; 

    $this->settings['categoriesmain2'] = array(
      'section' => 'general', 
      'title' => __('Select Center Block Category'), 
      'desc' => __('Here you can select the main category for main center block.'), 
      'type' => 'select', 
      'std'  => '', 
      'choices' => $categories_name 
     ); 
    $settings = get_option('mytheme_options'); 
    $my_choices_cat2 = $settings['categoriesmain2']; 

    $this->settings['categoriesmain3'] = array(
      'section' => 'general', 
      'title' => __('Select Right Block Category'), 
      'desc' => __('Here you can select the main category for main right block.'), 
      'type' => 'select', 
      'std'  => '', 
      'choices' => $categories_name 
     ); 
    $settings = get_option('mytheme_options'); 
    $my_choices_cat3 = $settings['categoriesmain3']; 

的index.php

<?php $settings = get_option('mytheme_options'); 
     query_posts('category_name='.$settings["categoriesmain1"].'&posts_per_page=1'); 
while (have_posts()) : the_post(); ?> 
    <div class="boxes-third boxes-first"> 
     <div class="boxes-padding"> 
      <div class="bti"> 
       <div class="featured-images"><?php the_post_thumbnail(array(300,300)); ?></div> 
       <div class="featured-titles"><?php echo get_the_title($post->ID); ?></div> 
      </div> 
      <div class="featured-text"><?php the_content('',FALSE,''); ?></div> 
     </div> 
     <span class="box-arrow"></span> 
    </div> 
    <?php endwhile; ?> 
    <?php wp_reset_query(); ?> 

    <?php $settings = get_option('mytheme_options'); 
     query_posts('category_name='.$settings["categoriesmain2"].'&posts_per_page=1'); 
while (have_posts()) : the_post(); ?> 
    <div class="boxes-third"> 
     <div class="boxes-padding"> 
      <div class="bti"> 
       <div class="featured-images"><?php the_post_thumbnail(array(300,300)); ?></div> 
       <div class="featured-titles"><?php echo get_the_title($post->ID); ?></div> 
      </div> 
      <div class="featured-text"><?php the_content('',FALSE,''); ?></div> 
     </div> 
     <span class="box-arrow"></span> 
    </div> 
    <?php endwhile; ?> 
    <?php wp_reset_query(); ?> 

    <?php $settings = get_option('mytheme_options'); 
     query_posts('category_name='.$settings["categoriesmain3"].'&posts_per_page=1'); 
while (have_posts()) : the_post(); ?> 
    <div class="boxes-third boxes-last"> 
     <div class="boxes-padding"> 
      <div class="bti"> 
       <div class="featured-images"><?php the_post_thumbnail(array(300,300)); ?></div> 
       <div class="featured-titles"><?php echo get_the_title($post->ID); ?></div> 
      </div> 
      <div class="featured-text"><?php the_content('',FALSE,''); ?></div> 
     </div> 
     <span class="box-arrow"></span> 
    </div> 
    <?php endwhile; ?> 
    <?php wp_reset_query(); ?> 

的問題是，在所述的index.php $settings[]未正確回顯。 例如

query_posts('category_name='.$settings["categoriesmain3"].'&posts_per_page=1');, 

如果我添加var_dump或print_r它會響應類似陣列{}（空數組）代替呼應的類別名稱，應該是

query_posts('category_name=Category3&posts_per_page=1'); 

其中Category3是所選擇的用戶從後端分類。 我的功能.txt是http://pastebin.ca/2476028 請幫助我，我正在盡力學習wordpress。

Answer 1

啊得到了它，我應該擁有的var_dump，現在我這樣做是爲了 的var_dump（$設置[ 「categoriesmain2」]），它是呼應字符串（1） 「1」，而不是類別。對於第一個是串（1）爲「0」和 第三個串（1）「2」是指呼應第一選擇， 第二選擇，第三選擇

其做的，由於它是一個數組，您可以將每個值作爲一個id，然後使用該id獲取它的名稱。

UPDATE：例

// an array contains cats ids 
$categories_ids = array(1,5,7,3); 

// sql stmnt to get all info about each id 
$sql = 'select * from categories where id in("'.implode('",'", array_values($categories_ids)).'")'; 

這只是一個例子，你可以做同樣的你的。