我试图按一个自定义字段值（称为price）对帖子进行排序。仅在自定义字段值中使用数字。我想，该网站的访问者可以排序的价格上使用下拉列表的职位。我搜索了一个插件，但没有找到。现在您找到以下代码：
<?php
$order = "&order=DESC";
if ($_POST[\'select\'] == \'tag\') { $order = "&tag=mytag"; }
if ($_POST[\'select\'] == \'title\') { $order = "&order=ASC&orderby=title"; }
if ($_POST[\'select\'] == \'newest\') { $order = "&order=DESC"; }
if ($_POST[\'select\'] == \'oldest\') { $order = "&order=ASC"; }
if ($_POST[\'select\'] == \'mcommented\') { $order = "&order=DESC&orderby=comment_count"; }
if ($_POST[\'select\'] == \'lcommented\') { $order = "&order=ASC&orderby=comment_count"; }
if ($_POST[\'select\'] == \'prijs\') { $order = "&order=ASC&orderby=meta_value_num"; }
?>
<form method="post" id="order">
Sort reviews by:
<select name="select" onchange=\'this.form.submit()\'>
<option value="tag"<?php selected( $_POST[\'select\'],\'tag\', 1 ); ?>>Tag</option>
<option value="title"<?php selected( $_POST[\'select\'],\'title\', 1 ); ?>>Title</option>
<option value="newest"<?php selected( $_POST[\'select\'],\'newest\', 1 ); ?>>Newest</option>
<option value="oldest"<?php selected( $_POST[\'select\'], \'oldest\', 1 ); ?>>Oldest</option>
<option value="mcommented"<?php selected( $_POST[\'select\'],\'mcommented\', 1 ); ?>>Most commented</option>
<option value="lcommented"<?php selected( $_POST[\'select\'],\'lcommented\' , 1 ); ?>>least commented</option>
<option value="prijs"<?php selected( $_POST[\'select\'],\'prijs\' , 1 ); ?>>prijs</option>
</select>
</form>
<?php query_posts($query_string . $order); ?>
但最后一个选择选项“prijs”不起作用。
谁能帮帮我吗？还是需要更多信息？
对不起，如果我的英语不完全正确的话。
SO网友:Ashok Kumar Nath
而不是query_posts 尝试使用WP_Query 班http://codex.wordpress.org/Class_Reference/WP_Query#Order_.26_Orderby_Parameters
这是codex的示例：
$args = array(
\'post_type\' => \'my_custom_post_type\',
\'meta_key\' => \'age\',
\'orderby\' => \'meta_value_num\',
\'order\' => \'ASC\',
\'meta_query\' => array(
array(
\'key\' => \'age\',
\'value\' => array( 3, 4 ),
\'compare\' => \'IN\',
),
),
);
$query = new WP_Query( $args );
