MySql查詢或合併到數組1

Question

使用ACF Pro，我在數據庫中wp_postmeta我有2 meta_key：dich_vu_%_name_service和dich_vu_%_price_service。兩者都有價值，所以我如何查詢並返回爲（）。或者如果MySQL不能處理它，那麼我怎樣才能將這些查詢的2個數組合併成這樣的一個？

array(objects(['name_service'] => Test,['price_service'] => 9999)) 

這裏是我的代碼，我試圖

function getAllFaqs() { 
global $wpdb; 
    $results = $wpdb->get_results($wpdb->prepare( 
    "SELECT DISTINCT meta_value FROM {$wpdb->prefix}posts,{$wpdb->prefix}postmeta WHERE meta_key LIKE %s AND post_name = %s", 
    'dich_vu_%_name_service', 
    'bang-gia-dich-vu' 
)); 
    $results2 = $wpdb->get_results($wpdb->prepare( 
    "SELECT DISTINCT meta_value FROM {$wpdb->prefix}posts,{$wpdb->prefix}postmeta WHERE meta_key LIKE %s AND post_name = %s", 
    'dich_vu_%_price_service', 
    'bang-gia-dich-vu' 
)); 

    $array = array(); 
    foreach ($results as $result) { 
     $array[]['name_service'] = $result->meta_value; 
    } 
    $array = $array; 
    $array2 = array(); 
    foreach ($results2 as $result2) { 
     $array2[]['price_service'] = $result2->meta_value; 
    } 
    $array2 = $array2; 
    $array3 = array_combine($array,$array2); 

感謝您的幫助！

Answer 1

聯盟是你的朋友，你可以結合兩個查詢（請記住，這兩個結果集必須具有相同的列數和相同類型和按順序）：

$query1 = $wpdb->prepare( 
    "SELECT DISTINCT meta_value FROM {$wpdb->prefix}posts,{$wpdb->prefix}postmeta WHERE meta_key LIKE %s AND post_name = %s", 
    'dich_vu_%_name_service', 
    'bang-gia-dich-vu' 
); 
$query2 = $wpdb->prepare( 
    "SELECT DISTINCT meta_value FROM {$wpdb->prefix}posts,{$wpdb->prefix}postmeta WHERE meta_key LIKE %s AND post_name = %s", 
    'dich_vu_%_price_service', 
    'bang-gia-dich-vu' 
); 

$results = $wpdb->get_results($query1.' UNION '.$query2); 

檢查docs

PS：我不知道WordPress的，但看到prepare返回消毒查詢字符串所以之間的UNION應該工作

Answer 2

爲什麼你把它作爲非常複雜。簡單地使用像這樣作爲WordPress的標準

global $wpdb; 
// Instead of passing post slug, you need to use post id here 
$myvals1 = get_post_meta($post->ID,"dich_vu_%_name_service", true); 
$myvals2 = get_post_meta($post->ID,"dich_vu_%_price_service", true); 

$obj = new StdClass(); 
$obj->name_service = $myvals1; 
$obj->price_service = $myvals2; 

$res = array($obj); 

// result 
array(1) { 
    [0]=> 
    object(stdClass)#245 (2) { 
    ["name_service"]=> 
    string(4) "Test" 
    ["price_service"]=> 
    string(4) "9999" 
    } 
}