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Wordpress 版本：3.5.2 Woocommerce 版本：2.0.13

以下是给出错误的代码。代码是产品搜索。尽管该函数按标签读取搜索，但它没有。它根据从复选框和下拉菜单中获取的其他标准进行搜索。在下面的代码中，我提到了错误开始的行，并在其旁边添加注释。

add_filter('the_posts', 'search_by_product_tag');

function search_by_product_tag($posts, $query = false)
{
//var_dump($_GET);
//$new_posts = array();
if($_GET['sh']=='search')
{
    $search_tags = array(
        'destination' => $_GET['destination'], 
        'days' => $_GET['days'],
        'budget' => $_GET['budget']
    );
    //var_dump($search_tags);die();
    $ignoreIds = array(0);
    foreach($posts as $post)
    {
        $ignoreIds[] = $post->ID;
    }
    $matchedTags = get_post_by_tag($search_tags, $ignoreIds);
    //var_dump($matchedTags);
    if ($matchedTags) 
    {
        foreach($matchedTags as $product_id)
        {   
            $posts[] = get_posts($product_id->object_id);
        }
    }
    return $posts;  
}
if($_GET['f']=='filter')
 {
    //$filter_tags = array(
        if(isset($_GET['price'])){
            $price_range = $_GET['price'];  
            $price = $price_range;
        }
        else{
            $price = "";
        }

        if(isset($_GET['holiday'])){
            $holiday_type = $_GET['holiday'];   
            $holiday = implode("','", $holiday_type);
        }
        else{
            $holiday = "";
        }

        if(isset($_GET['tour'])){
            $tour_category = $_GET['tour']; 
            $tour = implode("','", $tour_category);
        }
        else{
            $tour = "";
        }
    /*$ignoreIds = array(0);
    foreach($posts as $post)
    {
        $ignoreIds[] = $post->ID;
    }*/
    $new_post = array();
    //$matchedTags = get_post_by_filter_tag($price_range,$holiday_type,$tour_category, $ignoreIds);
    $matchedTags = get_post_by_filter_tag($price,$holiday,$tour, $ignoreIds);
    //var_dump($matchedTags);die();
    if ($matchedTags) 
    {
        foreach($matchedTags as $product_id)
        {   
            $new_post[] = get_posts($product_id->ID); //Error was given after I added this line instead of the default given below
            //$posts[] = get_post($product_id->id);
        }
    }
    return $new_post;
    die();
}

return $posts;
}
function get_post_by_tag($tags, $ignoreIds) 
{
//Check for 
global $wpdb, $wp_query;
$ignoreIdsForMySql = implode(",", $ignoreIds);
//var_dump($ignoreIdsForMySql);

//dynamic query
$query = "select distinct tr.object_id from $wpdb->terms t
        inner join $wpdb->term_taxonomy tt on t.term_id = tt.term_id
        inner join $wpdb->term_relationships tr on tt.term_taxonomy_id = tr.term_taxonomy_id
        inner join $wpdb->posts p on p.ID = tr.object_id
        inner join $wpdb->postmeta pm on p.ID = pm.post_id
        and t.name IN ('".$tags['destination']."','".$tags['days']."')
        where pm.meta_key = '_price' and pm.meta_value = '".$tags['budget']."'
        and p.post_status = 'publish'
        and p.post_type = 'product'
        and (p.post_parent = 0 or p.post_parent is null);";    
//var_dump($query);
//Search for the sku of a variation and return the parent.
$matchedProducts = $wpdb->get_results($query) ;

//var_dump($matchedProducts);
if(is_array($matchedProducts) && !empty($matchedProducts))
{
    //var_dump($matchedProducts);
    $wp_query->found_posts += sizeof($matchedProducts);
    //var_dump($wp_query->found_posts, sizeof($matchedProducts));
    return $matchedProducts;

}

//return get_post($product_id);

return null;
}

//function get_post_by_filter_tag($price_range,$holiday_type,$tour_category,$ignoreIds)    {
function get_post_by_filter_tag($price,$holiday,$tour,$ignoreIds)
{
//Check for 
global $wpdb, $wp_query;
//$ignoreIdsForMySql = implode(",", $ignoreIds);
/*$price = $price_range;
$holiday = implode("','", $holiday_type);
$tour = implode("','", $tour_category);*/
//var_dump($ignoreIdsForMySql);

//dynamic query
$query = "select distinct p.ID from $wpdb->terms t
        inner join $wpdb->term_taxonomy tt on t.term_id = tt.term_id
        inner join $wpdb->term_relationships tr on tt.term_taxonomy_id = tr.term_taxonomy_id
        inner join $wpdb->posts p on p.ID = tr.object_id
        inner join $wpdb->postmeta visibility on p.ID = visibility.post_id    
        and visibility.meta_key = '_visibility'
        and (visibility.meta_value = 'visible' or visibility.meta_value ='search')
        inner join $wpdb->postmeta pm on p.ID = pm.post_id
        and t.name IN ('".$holiday."','".$tour."')
        where pm.meta_key = '_price' and pm.meta_value <= $price
        and p.post_status = 'publish'
        and p.post_type = 'product'
        and (p.post_parent = 0 or p.post_parent is null);";  

//Search for the sku of a variation and return the parent.
$matchedProducts = $wpdb->get_results($query) ;

var_dump($matchedProducts);//die();
if(is_array($matchedProducts) && !empty($matchedProducts))
{
    //var_dump($matchedProducts);
    $wp_query->found_posts += sizeof($matchedProducts);
    //var_dump($wp_query->found_posts, sizeof($matchedProducts));
    //var_dump($wp_query);
    return $matchedProducts;

}

//return get_post($product_id);

return null;
}
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