<?php
function get_post_meta_multiple( $metaData = array(), $type = 'post', $category = NULL, $ppp, $metaKey, $orderBy, $orderType)
{
    /**
     * @author Modified by Deniz Netinial.com
     * @copyright deniz [at] porsuk dot net
     * to modify I spend 1 week on it.
     * If you like this modification just send me an e mail, with thanks. SQL_NO_CACHE / SQL_Calc_Found_Rows 
     */
 
	global $wpdb,$wp_query;
	$queryStr = "SELECT $wpdb->posts.* 
				FROM $wpdb->posts ";
 
	if ( $category != NULL AND is_string($category) )
	{
		$queryStr .= " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) ";
		$queryStr .= " INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
	}
	$queryStr .= " JOIN $wpdb->postmeta on ($wpdb->posts.ID = $wpdb->postmeta.post_id) WHERE ";
 
	if ( $category != 'NULL' AND is_string($category) )
	{
		$queryStr .= " 1=1 AND $wpdb->term_taxonomy.taxonomy = 'category' ";
		$queryStr .= " AND $wpdb->term_taxonomy.term_id IN(".$category.") AND ";
	}
 
	$queryStr .= " $wpdb->posts.post_type = '".$type."' AND $wpdb->posts.post_status = 'publish'";
 
		// Fark buradan sonra basliyor
 
	if ($metaData)
		{ $queryStr .= " AND CASE meta_key "; }
 
	if ($metaData)
		{ 
				foreach($metaData as $key => $value)
			{
				$queryStr .= "WHEN '$key' THEN meta_value ";
 
				//Sadece % karakteri iceriyorsa like kullansin. Sql Performance icin.
				//echo "<h1>".$value."</h1>";
					if(strpos($value, '%') === false)
						{ $queryStr .= "= '$value'"; }
					else{ $queryStr .= "LIKE('$value')";; }
			}
 
		}
 
	if ($metaData)
		{ $queryStr .= " END"; }
 
	$queryStr .= " GROUP BY $wpdb->postmeta.post_id ";
	$queryStr .= " HAVING count(*) = " . count($metaData);
 
	// Order By Bolumu - Sonuna Geldik.
 
	$queryStr .= " ORDER BY ";
 
	// Azalanmi olacak artanmi olacak	
	if(strtolower($orderBy) == "desc"){ $orderBy = " desc "; }else{ $orderBy = " asc "; }
 
	// Sayisalmi olacak Alfabetikmi olacak
	if(strtolower($orderType) == 'numerical')
      { $orderType = 'CAST(meta_value AS decimal)'; }
    else { $orderType = 'meta_value'; }
 
	// Direk Listelemek icin
	if(strtolower($metaKey) == 'natural')
		{ $queryStr .= " $wpdb->posts.post_date $orderBy"; }
	else
		{		
				$queryStr .= "(
				SELECT $orderType
				FROM $wpdb->postmeta tmp
				WHERE tmp.post_id = $wpdb->posts.ID
				AND tmp.meta_key = '$metaKey'
				LIMIT 1
			) $orderBy";		
 
		}
 
 	# put limit in query built above */
    
    $metaResults = $wpdb->get_results($queryStr, OBJECT);
 
	if(!$ppp or !is_int($ppp))
		{ $ppp = intval(get_query_var('posts_per_page')); } //12 posts per page you might use $ppp = intval(get_query_var('posts_per_page'));
 
	$wp_query->found_posts = count($metaResults);
	$wp_query->max_num_pages = ceil($wp_query->found_posts / $ppp);
	$on_page = intval(get_query_var('paged'));	
	if($on_page == 0){ $on_page = 1; }		
	$offset = ($on_page-1) * $ppp;
 
	$wp_query->request = $queryStr." LIMIT $ppp OFFSET $offset ";
	$pageposts = $wpdb->get_results($wp_query->request, OBJECT);
 
	//echo mysql_error();
 
	//echo ' Query : <br /><br />'.$queryStr.'<br /><br />';
 
	return $pageposts;
}
?>

<?php
$aMetaDataList = array('type' => 'Flat', 'for' => 'Sale');
global $resultList;
    $szCategory = 'NULL'; // All Categories will be shown, $szCategory = '1,2,3'; Only from 1,2,3
    $ppp = 5; // Post per page.
    $metaKey = 'total_property_size'; // Metakey to order.
    $orderBy = 'desc'; // orderBy = 'asc'; for Ascending
    $orderType = 'numerical'; // Order as Numerical, $orderType = 'Aphabetical'; Leave Blank Alphabetical
    $resultList = get_post_meta_multiple( $aMetaDataList, 'post', $szCategory, $ppp, $metaKey, $orderBy, $orderType);
?>

<?php 
function get_post_meta_multiple( $aMetaDataList = array(), $szType = 'post', $szCategory = NULL, $ppp, $metaKey, $orderBy, $orderType)
{
    /**
     * @author Modified by Deniz Netinial.com
     * @copyright deniz [at] porsuk dot net
     * to modify I spend 1 week on it.
     * If you like this modification just send me an e mail, with thanks. SQL_NO_CACHE
     */
 
    global $wpdb,$wp_query;
    $szQuerystr = "SELECT SQL_Calc_Found_Rows $wpdb->posts.* FROM $wpdb->posts ";
 
    if ( $szCategory != NULL AND is_string($szCategory) )
    {
    $szQuerystr .= " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) ";
    $szQuerystr .= " INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
    }
    $szQuerystr .= " JOIN $wpdb->postmeta on ($wpdb->posts.ID = $wpdb->postmeta.post_id) WHERE ";
 
    if ( $szCategory != 'NULL' AND is_string($szCategory) )
    {
    $szQuerystr .= " 1=1 AND $wpdb->term_taxonomy.taxonomy = 'category' ";
    $szQuerystr .= " AND $wpdb->term_taxonomy.term_id IN(".$szCategory.")  AND ";
    }
 
    $szQuerystr .= " $wpdb->posts.post_type = '".$szType."' AND $wpdb->posts.post_status = 'publish'";
 
    if($metaKey){
    $szQuerystr .= " AND $wpdb->postmeta.meta_key = '".$metaKey."' ";
    }
 
    $aInnerqry = array();
 
    if(!empty($aMetaDataList))
    {
        $szQuerystr .= " Group By  $wpdb->posts.ID Having ";
        $szQuerystr .= " $wpdb->posts.ID IN (";
        $szQuerystr .= "SELECT $wpdb->postmeta.post_id FROM $wpdb->postmeta WHERE ";
        foreach($aMetaDataList as $szKey => $szValue)
        {
        $aInnerqry[] = $wpdb->prepare( "(meta_key = %s AND meta_value = %s)", $szKey, $szValue );
        }
    $szQuerystr .= implode(" OR ", $aInnerqry);
    $szQuerystr .= " GROUP BY $wpdb->postmeta.post_id ";
    $szQuerystr .= " HAVING count(*) = " . count($aMetaDataList)." ) ";
    }
 
    if(strtolower($orderType) == 'numerical')
      { $orderType = 'ABS'; }
    else { $orderType = ''; }
 
    if(!empty($aMetaDataList)) { $szQuerystr .= " ORDER BY ".$orderType."($wpdb->postmeta.meta_value) "; }
    else {  $szQuerystr .= " ORDER BY $wpdb->posts.post_date "; }
 
    if($orderBy == strtolower('desc')){ $szQuerystr .= " desc "; }else{ $szQuerystr .= " asc "; }
 
     # put limit in query built above */

    $aMetaResults = $wpdb->get_results($szQuerystr, OBJECT);
 
    if(!$ppp or !is_int($ppp))
    { $ppp = intval(get_query_var('posts_per_page')); } //12 posts per page you might use $ppp = intval(get_query_var('posts_per_page'));
 
    $wp_query->found_posts = count($aMetaResults);
    $wp_query->max_num_pages = ceil($wp_query->found_posts / $ppp);
    $on_page = intval(get_query_var('paged'));
    if($on_page == 0){ $on_page = 1; }
    $offset = ($on_page-1) * $ppp;
 
    $wp_query->request = $szQuerystr." LIMIT $ppp OFFSET $offset ";
    $pageposts = $wpdb->get_results($wp_query->request, OBJECT);
 
    echo mysql_error();
 
    echo ' --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- '.$szQuerystr;
 
    return $pageposts;
}
?>

<?php
if ($resultList):
//Loop through each result post to display appropriate contents
$i = 0;
foreach ($resultList as $post):
	setup_postdata($post);
        echo '<h1>'.$resultList[0]->ID.'</h1>';
endforeach;
?>