Question

示例我有这样的数组：

Array
(
    [0] => 1
    [1] => 1
    [2] => 1
    [3] => 1
    [4] => 5
    [5] => 5
    [6] => 5
    [7] => 6
    [8] => 7
    [9] => 8
    [10] => 9
)

我的问题是，如何创建这样的新数组。因此，为相同的值创建新数组：

Array
(
    [0] => Array
        (
            [0] => 1
            [1] => 1
            [2] => 1
            [3] => 1
        )

    [1] => Array
        (
            [0] => 5
            [1] => 5
            [2] => 5
        )

    [2] => 6
    [3] => 7
    [4] => 8
    [5] => 9
)

请帮助我和我的坏英语。

Answer 1

$result = [];
foreach (array_count_values($array) as $value => $occurrences) {
    $result[] = $occurrences == 1 ? $value : array_fill(0, $occurrences, $value);
}

见http://php.net/array_count_values。事实上，这可能正是你所寻找的;我没有看到多次重复相同值的重点。

Answer 2

使用array_count_values

试试这个

<?php

$tr = Array(1,1,1,1,5,5,5,6,7,8,9,10);

$array= array_count_values($tr);
var_dump($array);


$arry1 = array();
foreach($array as $key =>$val){
 if ($val>1){
     $tmp =array();
     for($i= 0;$i<$val;$i++){
       $tmp[] =$key;
     }
     $arry1[] =$tmp;
 }
 else{
     $arry1[] =$key;
 } 
}

var_dump( $arry1);
?>

如果数组具有相同的值，Php将从数组值创建新数组

2 个答案: