php 算法之------------怎样打印出下图

自己偶尔看到了下图。于是用php打印出下图。

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两种方法解决此问题：

方法一：依据图分析该图是一个二维数组，可用二维数组解决此类问题，6行就是6个数组，每一行就代表数组有多少个元素。知道每一个数组元素的个数。不就能够知道数组中有哪几个元素吗？

function array_chunk_vertical($arr, $colun)
{
$arr_length = count($arr);
$parem = floor($arr_length / $colun);
$pare = $arr_length % $colun;
$ar = array();
for ($i = 0; $i < $colun; $i ++) {
$par = $i == $colun - 1 ? 1 : 5;
$ar[] = $par;
}
$newarray = array();
foreach ($ar as $value) {
for ($i = 0; $i < $value; $i ++) {
$newarray[$i][] = array_shift($arr);
}
}
return $newarray;
}$arr = range(1, 31);
$data = array_chunk_vertical($arr, 7);
foreach ($data as $value) {
foreach ($value as $va) {
printf('[%2s]', $va);
}
echo "<br/>";
}

方法二：如代码。先给出size个空数组。在空数组中填充元素。

详细方法例如以下：

<?php
function array_chunk_vertical($input, $size, $preserve_keys = FALSE, $size_is_horizontal = false)
{
$chunks = array(); if ($size_is_horizontal) {
$chunk_count = ceil(count($input) / $size);
} else {
$chunk_count = $size;
} for ($chunk_index = 0; $chunk_index < $chunk_count; $chunk_index++) {
$chunks[] = array();
} $chunk_index = 0;
foreach ($input as $key => $value)
{
if ($preserve_keys) {
$chunks[$chunk_index][$key] = $value;
} else {
$chunks[$chunk_index][] = $value;
} if (++$chunk_index == $chunk_count) {
$chunk_index = 0;
}
} return $chunks;
}$data=range(1,31);
$newdata=array_chunk_vertical($data,6);
foreach ($newdata as $root){
foreach ($root as $val){
printf('[%2s]',$val);
}
echo "<br/>";
}