如何在PHP中構建複雜的數組？

Question

如何在PHP中構建這樣的數組？

它應該有每個對應的值都是數組的唯一鍵，而且這些數組對於每個鍵都有多個元素。

Array (
    42 => Array (56, 86, 97) 
    51 => Array (64, 52) 
) 

Answer 1

$main = array(); 
for ($i=0; $i<10; $i++) { 
    // $i makes numeric keys 
    $main[$i] = array(); 

    // Or instead, you could make a truly unique key name for each: 
    $main[uniqid()] = array(...somevalues...); 

} 

創建類似：

Array 
(
    [4f105f361cdd1] => Array 
     (
     ) 

    [4f105f361cf24] => Array 
     (
     ) 

    [4f105f361cf33] => Array 
     (
     ) 

    [4f105f361cf3c] => Array 
     (
     ) 

    [4f105f361cf44] => Array 
     (
     ) 

) 

Answer 2

$arraytest = array(
      42 => array(56, 86, 97), 
      51 => array(64, 52) 
      ); 

var_dump($arraytest); 

Answer 3

$array = array(
    42 => array(56,86,97), 
    51 => array(64,52) 
); 

Answer 4

$arr = array(
    42 => array(56, 86, 97), 
    51 => array(64, 52) 
); 

var_dump($arr);