PHP更换多维数组键

Question

我想更换一些键，我的数组是：

Array 
(
    [0] => Array 
     (
      [0] => test1 
      [1] => test2 
      [2] => test3 
      [3] => test4 
      [4] => test5 
      [5] => test6 
     ) 

    [1] => Array 
     (
      [0] => test7 
      [1] => test8 
      [2] => test9 
      [3] => test10 
      [4] => test11 
      [5] => test12 
     ) 

) 

我的愿望：

Array 
(
    [45] => Array 
     (
      [0] => test1 
      [1] => test2 
      [2] => test3 
      [3] => test4 
      [4] => test5 
      [5] => test6 
     ) 

    [51] => Array 
     (
      [0] => test7 
      [1] => test8 
      [2] => test9 
      [3] => test10 
      [4] => test11 
      [5] => test12 
     ) 

) 

45和51的例子。

我该怎么做？我尝试了array_flip（）然后array_search（），但PHP说：“只能翻转STRING和INTEGER值！”

反正谢谢。问候

Answer 1

$old_array = array(
    0 => array(0=>'test1',1=>'test2',2=>'test3',3=>'test4',4=>'test5',5=>'test6'), 
    1 => array(0=>'test1',1=>'test2',2=>'test3',3=>'test4',4=>'test5',5=>'test6') 
); 
$new_array = array(
    45=>$old_array[0], 
    51=>$old_array[1] 
); 
var_dump($new_array); 

Answer 2

可以通过将新密钥设置为旧密钥的值，然后取消旧密钥的设置来修改数组中的密钥。

$myArray = array(
    "0" => array("0" => "test1", "1" => "test2"), 
    "1" => array("0" => "test3", "1" => "test4")); 

echo "original array:\n"; 
var_dump($myArray); 

// modify keys 
$myArray["45"] = $myArray["0"]; 
unset($myArray["0"]); 
$myArray["51"] = $myArray["1"]; 
unset($myArray["1"]); 

echo "modified array:\n"; 
var_dump($myArray); 

产生：

original array: 
array(2) { 
    [0]=> 
    array(2) { 
    [0]=> 
    string(5) "test1" 
    [1]=> 
    string(5) "test2" 
    } 
    [1]=> 
    array(2) { 
    [0]=> 
    string(5) "test3" 
    [1]=> 
    string(5) "test4" 
    } 
} 

modified array: 
array(2) { 
    [45]=> 
    array(2) { 
    [0]=> 
    string(5) "test1" 
    [1]=> 
    string(5) "test2" 
    } 
    [51]=> 
    array(2) { 
    [0]=> 
    string(5) "test3" 
    [1]=> 
    string(5) "test4" 
    } 
} 

Answer 3

$keys = array('45','51'); 
$count = 6 ; 
$i = 0; 
foreach($keys as $key){ 
    for($l = 0;$l<$count;$l++){ 
     $last[$key][$l] = 'test'.$l+$i+1 ; 
    } 
    $i += $count; 
} 
print_r($last); 

集$ count来任意数量要阵列。