PHP Chinese vertical conversion implementation method, _PHP tutorial

<&#63;php 
include('ccw.inc.php'); 
 
if (isset($_POST['string'])){ 
 $ccw = new CCW; 
 $converd = $ccw->convert($_POST['string']); 
} 
&#63;> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<form method="post" charset="utf-8"> 
 <p><&#63;php echo $converd &#63;></p> 
 <p><textarea name="string" cols="50" rows="10"></textarea></p> 
 <p><input type="submit" /></p> 
</form> 

<&#63;php 
/** 
 * 转换中文字符串至古文排版 
 */ 
class CCW { 
 protected $SEPARATOR = '┆'; 
 protected $BLANK = '　'; 
 protected $CHARLIST = array( 
 '0' => '０', '1' => '１', '2' => '２', '3' => '３', '4' => '４', '5' => '５', 
 '6' => '６', '7' => '７', '8' => '８', '9' => '９', 'a' => 'ａ', 'b' => 'ｂ', 
 'c' => 'ｃ', 'd' => 'ｄ', 'e' => 'ｅ', 'f' => 'ｆ', 'g' => 'ｇ', 'h' => 'ｈ', 
 'i' => 'ｉ', 'j' => 'ｊ', 'k' => 'ｋ', 'l' => 'ｌ', 'm' => 'ｍ', 'n' => 'ｎ', 
 'o' => 'ｏ', 'p' => 'ｐ', 'q' => 'ｑ', 'r' => 'ｒ', 's' => 'ｓ', 't' => 'ｔ', 
 'u' => 'ｕ', 'v' => 'ｖ', 'w' => 'ｗ', 'x' => 'ｘ', 'y' => 'ｙ', 'z' => 'ｚ', 
 'A' => 'Ａ', 'B' => 'Ｂ', 'C' => 'Ｃ', 'D' => 'Ｄ', 'E' => 'Ｅ', 'F' => 'Ｆ', 
 'G' => 'Ｇ', 'H' => 'Ｈ', 'I' => 'Ｉ', 'J' => 'Ｊ', 'K' => 'Ｋ', 'L' => 'Ｌ', 
 'M' => 'Ｍ', 'N' => 'Ｎ', 'O' => 'Ｏ', 'P' => 'Ｐ', 'Q' => 'Ｑ', 'R' => 'Ｒ', 
 'S' => 'Ｓ', 'T' => 'Ｔ', 'U' => 'Ｕ', 'V' => 'Ｖ', 'W' => 'Ｗ', 'X' => 'Ｘ', 
 'Y' => 'Ｙ', 'Z' => 'Ｚ', '(' => '︵', ')' => '︶', '[' => '︻', ']' => '︼', 
 '{' => '︷', '}' => '︸', '<' => '︽', '>' => '︾', '*' => '＊', '&' => '＆', 
 '^' => '︿', '%' => '％', '$' => '＄', '#' => '＃', '@' => '＠', '!' => '！', 
 '~' => '～', '`' => '｀', '+' => '＋', '-' => '－', '=' => '＝', '_' => '＿', 
 '|' => '｜', '\\' =>'＼', '\'' =>'＇', '"' => '＂', ';' => '；', ':' => '：', 
 '.' => '．', ',' => '，', '&#63;' => '？', '/' => '／', ' ' => '　', '（' => '︵', 
 '）' => '︶', '【' => '︻', '】' => '︼', '《' => '︽', '》' => '︾' 
 ); 
 
 public $height = 10; // 默认竖排高度 
 
 /** 
 * 转换文字到竖排 
 * 
 * @return string 
 */ 
 function convert($original, $height = null) { 
 $original = preg_replace('/\s/', '', $original); // 去除多余的空格等 
 $strarr = $this->mbStringToArray($original); // 分解成数组 
 $height = $height &#63; intval($height) : $this->height; 
 $total = sizeof($strarr); 
 $width = ceil($total / $height); 
 
 // 分割中文字符 
 $result = array(); 
 for ($i = 0, $tmp = array(); $i < $total; $i++) { 
 $c = $strarr[$i]; // 格式化当前字符 
 $tmp[] = isset($this->CHARLIST[$c]) &#63; $this->CHARLIST[$c] : $c; 
 if (sizeof($tmp) == $height) { 
 $result[] = $tmp; 
 $tmp = array(); 
 } 
 } 
 
 // 如果还有剩余的字符 
 if (sizeof($tmp)) { 
 $result[] = $tmp; 
 } 
 
 // 开始输出 
 $output = "<pre class="brush:php;toolbar:false">"; 
 for($j = 0; $j < $height; $j++) { 
 for ($i = $width - 1; $i >= 0; $i--) { 
 $output .= $this->SEPARATOR; 
 $output .= isset($result[$i][$j]) &#63; $result[$i][$j] : $this->BLANK; 
 } 
 $output .= $this->SEPARATOR; 
 $output .= "\n"; 
 } 
 
 return $output."