php 算法之如何打印出下图

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 ";}

<?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>";}