多次在字符串中添加字符 [英] adding characters in a string multiple times

问题描述

我想将数字以空格分隔，以4为一组.1234567890，将变为1234 5678 90

I want to separate numbers by a space, in sets of 4. e.g. 1234567890, would become 1234 5678 90

我设法创建了一个脚本来实现这一目标，但似乎最重要的是，有没有更简单的方法来实现这一目标?

I managed to create a script to achieve this, but it seems over the top, is there any easier way of achieving this?

$num = 23853267362365;
$count = strlen($num)/4;

$new_num = array();
for ($x = 1; $x <= $count; $x++) {
    $num_len = strlen($num);
    if($num_len>4) {
        $new_num[] = substr($num,0,4);
        $num = substr($num,4,$num_len-4);
    }
}

$num = implode(' ',$new_num);

推荐答案

chunk_split():

echo chunk_split(1234567890, 4, ' ');

链接: http://php.net/manual/function.chunk-split.php

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