Question

在php中对给定数字的数组元素进行分组如何使用php对数组元素进行分组？

我有以下数组

array (size=10)
   0 => int 1
   1 => int 2
   2 => int 3
   3 => int 4
   4 => int 5
   5 => int 6
   6 => int 7
   7 => int 8
   8 => int 9
   9 => int 10

我需要按照模型

对这个数组进行分组

0 => 
array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3
1 => 
 array (size=3)
   0 => int 4
   1 => int 5
   2 => int 6
2 => 
  array (size=3)
    0 => int 7
    1 => int 8
    2 => int 9
3 => 
  array (size=3)
    0 => int 10

我该怎么办？
我尝试了以下代码。

$arr = array(1,2,3,4,5,6,7,8,9,10);

    $result = array();
    for ($i = 0; $i < count($arr); $i++) {
        for ($j = 0; $j < 3; $j++) {
            $result[$i][] = $arr[$j];
        }
    }

结果是下面给出的代码

array (size=10)
0 => 
  array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3
1 => 
 array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3
2 => 
 array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3
3 => 
 array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3
4 => 
 array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3
5 => 
 array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3
6 => 
 array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3
7 => 
 array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3
8 => 
 array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3
9 => 
 array (size=3)
   0 => int 1
   1 => int 2
   2 => int 3

Answer 1

PHP array_chunk documentation

PHP code demo

<?php

$array = array(
    0 => 1,
    1 => 2,
    2 => 3,
    3 => 4,
    4 => 5,
    5 => 6,
    6 => 7,
    7 => 8,
    8 => 9,
    9 => 10
);
print_r(array_chunk($array, 3));

Answer 2

我认为这就是你所需要的。 https://www.w3schools.com/php/func_array_chunk.asp

在php中使用给定数字对数组元素进行分组

2 个答案: