php 如何在PHP中将整数转换为数组？

How to convert an integer to an array in PHP?

提问by rob.s

What would be the most simple way to convert an integer to an array of numbers?

将整数转换为数字数组的最简单方法是什么？

Example:

例子：

2468should result in array(2,4,6,8).

2468应该导致array(2,4,6,8).

回答by Berry Langerak

You can use str_splitand intval:

您可以使用str_split和intval：

$number = 2468;

    $array  = array_map('intval', str_split($number));

var_dump($array);

Which will give the following output:

这将给出以下输出：

array(4) {
  [0] => int(2)
  [1] => int(4)
  [2] => int(6)
  [3] => int(8)
}

Demo

演示

回答by 4DA

You can cut-off the last digit by taking the number modulo 10.

您可以通过对数字取模 10 来截断最后一位数字。

Don't tell it to anyone!

不要告诉任何人！

do 
{
    $array.add(num % 10);
    num = num / 10;
}
while (num != 0);

回答by Nathan Q

use str_split() function

使用 str_split() 函数

$array = str_split($str);

http://php.net/manual/en/function.str-split.php

http://php.net/manual/en/function.str-split.php

回答by breiti

Example #2 Splitting a string into component characters

Example #2 将字符串拆分为组成字符

$str = 'string';
$chars = preg_split('//', $str, -1, PREG_SPLIT_NO_EMPTY);