每次不同地打印3个字符的数组值[重复]答案

【问题标题】：Print 3 chars of arrays values every time differently [duplicate]每次不同地打印3个字符的数组值[重复]
【发布时间】：2018-08-02 08:14:01
【问题描述】：

标题很难解释

我有不同值的数组。假设这是数组：

$char = array("a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","1","2","3","4","5","6","7","8","9","0");

如何打印这个数组的每一个可能的 3 个字符。就像开始...

啊啊

aab

aac

等等……

【问题讨论】：

请向我们展示你的努力
@b001 我没上过数学课，现在后悔了，我知道从0-9，3位数是999个可能性，36个字符能收集多少个可能性？我想我需要将 36 乘以 100。这导致 3600 的可能性。所以我从 0 到 3600，并且对于每个第一个图表将保持在 0 第二个 0，第三个从 1 到 36 然后第二个字符从 0 变为 1，第三个字符重新开始计数。我还有很长的路要走，但我非常需要这种可能性。
@KunalAwasthi 我需要知道 36 个字符加在一起的可能性是 3600 吗？我真的不知道。我知道如何循环。
@AbdullahSalma 46656 根据我在 google 上搜索的可能组合数量。尝试通过 google 或您最喜欢的搜索引擎搜索问题。
一点线索：没有重复的排列：42840。允许重复的排列：46656

标签： php

【解决方案1】：

这是可能的两个字母数字的示例

<?php
$start = base_convert("10",36,10);
$end = base_convert("zz",36,10);
for($start;$start <= $end;$start++){
  echo base_convert($start,10,36)."\n";
}
?>

Live Demo

您可以从100 到zzz 获取三个白数字的所有可能数字。

【讨论】：

【解决方案2】：

你需要循环 3 来找到你想要的输出。

$char = array("a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","1","2","3","4","5","6","7","8","9","0");
$length = count($char);
for($i = 0; $i < $length; $i++)
    for($j = 0; $j < $length; $j++)
        for($k = 0; $k < $length; $k++)
            echo $char[$i].$char[$j].$char[$k]."<br/>";

输出：

aaa
aab
aac
aad
aae
aaf
aag
aah
aai
...

【讨论】：