订购WordPress的post_meta - 最低到最高

Question

我目前通过循环的所有帖子，并显示post_meta值是这样的：

global $wpdb; 
$table = $wpdb->prefix . 'postmeta'; 
$theid = get_the_id(); 
$getLowestPrice = $wpdb->get_results("SELECT * FROM $table WHERE meta_value = '$theid'"); 
foreach ($getLowestPrice as $post){ 

get_post_meta($post->post_id, '_wholesale_price', false); 

} 

有没有办法命令的结果，最低 - >最高？目前，他们正在随机显示，或者在输入时显示。

Answer 1

使用下面的代码

<?php 
global $wpdb; 
$table = $wpdb->prefix . 'postmeta'; 
$theid = get_the_id(); 
$getLowestPrice = $wpdb->get_results("SELECT * FROM $table WHERE meta_value = '$theid'"); 
$all_post = array(); 
foreach ($getLowestPrice as $post){ 
    $all_post[] = $post->post_id; 

} 
$query = new WP_Query(array('post__in' => $all_post, 'orderby' => 'meta_value', 'meta_key' => '_wholesale_price','order' => 'ASC')); 

// The Loop 
if ($query->have_posts()) { 
while ($query->have_posts()) { 
    $query->the_post(); 
    echo '<div>' . get_post_meta($get_the_ID(), '_wholesale_price', false);() . '</div>'; 
} 
} else { 
// no posts found 
} 
/* Restore original Post Data */ 
wp_reset_postdata(); 
?>` 

Answer 2

这看起来有点错误的我。如果你想订购由元键值职位（除非我错了，这是你在做什么），那么我通常会去了解它使用WP_Query()

global $wp_query; 

$args = array(
    'post_type' => '[YOUR POST TYPE]', 
    'meta_key' => '_wholesale_price', 
    'orderby' => 'meta_value meta_value_num', // meta_value_num for value 
    'order' => 'ASC' // or DSC for low/high 
); 

$wp_query - new WP_Query($args); 

if ($wp_query->have_posts()) { 
    while ($wp_query->have_posts()) { 
    $wp_query->the_post(); 

    // Your loop 

    } 
}