組變量和循環通過它們

Question

當我不得不單變量我使用了compact數組函數來創建包含變量和它們的值的數組，並通過它們循環，但現在我有多個變量中一個「小組」遍歷：

$details_room_name_1 
$details_room_photo_1 
$details_room_capacity_seated_1 

$details_room_name_2 
$details_room_photo_2 
$details_room_capacity_seated_2 

$details_room_name_2 
$details_room_photo_2 
$details_room_capacity_seated_2 

我通過每一個「集團」要循環一次

loop 
    echo room name 
    print_r room photo array 
    echo capacity 

Answer 1

的變量（室）使用陣列是更好地爲這項任務（最好）的解決方案，但如果數據結構有像你寫的一樣（我不知道WordPress的），你可以美東時間。像這個醜陋的代碼。

<?php 

$details_room_name_1 = 'room 1'; 
$details_room_photo_1 = 'photo 1'; 
$details_room_capacity_seated_1 = 1; 

$details_room_name_2 = 'room 2'; 
$details_room_photo_2 = 'photo 2'; 
$details_room_capacity_seated_2 = 5; 

$details_room_name_3 = 'room 3'; 
$details_room_photo_3 = 'photo 3'; 
$details_room_capacity_seated_3 = 8; 

for ($i = 1; $i <= 10; $i++) { 
    if (!isset(${'details_room_name_' . $i})) continue; 

    echo 'room name: ' . ${'details_room_name_' . $i} . '<br>'; 
    echo 'room photo: ' . ${'details_room_photo_' . $i} . '<br>'; 
    echo 'room capacity: ' . ${'details_room_capacity_seated_' . $i} . '<br><br>'; 
} 

/* 
    returns 

    room name: room 1 
    room photo: photo 1 
    room capacity: 1 

    room name: room 2 
    room photo: photo 2 
    room capacity: 5 

    room name: room 3 
    room photo: photo 3 
    room capacity: 8 
*/