PHP multidimensional array A simple example of php disrupting an array, a two-dimensional array, and a multi-dimensional array-PHP Tutorial-php.cn

PHP multidimensional array A simple example of php disrupting an array, a two-dimensional array, and a multi-dimensional array

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Release： 2016-07-28 08:29:28

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The shuffle function in php can only shuffle one-dimensional arrays. Is there any way to shuffle multi-dimensional arrays quickly and conveniently? The manual provides

<&#63;php 
function shuffle_assoc($list) { 
 if (!is_array($list)) return $list; 
 $keys = array_keys($list); 
 shuffle($keys); 
 $random = array(); 
 foreach ($keys as $key) 
  $random[$key] = $list[$key]; 
 return $random; 
} 
&#63;>

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The above is for two-dimensional arrays!

The following shuffle method for multi-dimensional arrays? As convenient and fast as possible:

<&#63;php 
function shuffle_assoc($list) { 
if (!is_array($list)) return $list; 

$keys = array_keys($list); 
shuffle($keys); 
$random = array(); 
foreach ($keys as $key) 
$random[$key] = shuffle_assoc($list[$key]); 

return $random; 
} 
&#63;>

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The following functions are also from the PHP manual, which can scramble multi-dimensional arrays:

/**
* Shuffles an associative array recursive
* 
* @param array $array
* @return array
*
*/

function rec_assoc_shuffle($array)
{
 $ary_keys = array_keys($array);
 $ary_values = array_values($array);
 shuffle($ary_values);
 foreach($ary_keys as $key => $value) {
  if (is_array($ary_values[$key]) AND $ary_values[$key] != NULL) {
   $ary_values[$key] = rec_assoc_shuffle($ary_values[$key]);
  }
  $new[$value] = $ary_values[$key];
 }
 return $new;
}

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