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从刚开始练习的PHP基础语法练习，到PHP语言在WEB中的应用，再到实际的项目开发，如留言版，相册系统，中小型公司网站系统，以及期间做过的有关团队合作的小游戏，让我受益匪浅，学到了很多。ubb <?php
/*
若有转载，请注明作者
原作者: 何志强
改善: SonyMusic[sonymusic@163.net]
文件: ubb.php
备注: 说是改善，其实中心函数parse()已完整重写了，并且思绪也是纷歧样的。
不外还是受何志强的例子的启示，并且测试的例子还有URLCHECK等几个函数也是沿用的何志强的法式，感谢何志强。
今朝还没有色彩的功效，但我会到场的。
假如在法式上有甚么BUG或方便的中央，请给我MAIL。
感谢！
改善功效:
对字符串停止UBB编码,该类今朝只撑持以下几个复杂且适用的编码:
1. URL裢接
http://phpuser.com/
http://头可以不需求
如phpuser.com也是可以的。
2. Email裢接
sonymusic@163.net
3. 图片裢接
同URL链接一样，后面的http也能够不要。
4. 文字方面
粗体字
斜体字
加下划线
1号题目字
... 6号题目字
[tt][/tt]
<strike></strike>
[em][/em]
[strong][/strong]
[samp][/samp]
[kbd][/kbd]
[var][/var]
[dfn][/dfn]
[cite][/cite]
注重以下几点:
1. url,email,img等标签是不分巨细写的.
2. 在标签中不答应有TAB键呈现，但空格答应。
3. 该类要挪用htmlencode,htmlencode4textarea,emailcheck函数和urlcheck类.
4. 修正后撑持嵌套，但url,email,img这三个标签不是答应嵌套的。
手艺材料:
Ultimate Bulletin Board
http://www.ultimatebb.com/
What is UBB Code
http://www.scriptkeeper.com/ubb/ubbcode.html
*/
include("urlcheck.php");
include("otherfunc.php"); //这两个文件的内容，附在最初。
//ubbcode类
class ubbcode{
var $call_time=0;
//可处置标签及处置函数对应表
var $tags = array( //小写的标签 => 对应的处置函数
'url' => '$this->url',
'email' => '$this->email',
'img' => '$this->img',
'b' => '$this->simple',
'i' => '$this->simple',
'u' => '$this->simple',
'tt' => '$this->simple',
's' => '$this->simple',
'strike' => '$this->simple',
'h1' => '$this->simple',
'h2' => '$this->simple',
'h3' => '$this->simple',
'h4' => '$this->simple',
'h5' => '$this->simple',
'h6' => '$this->simple',
'sup' => '$this->simple',
'sub' => '$this->simple',
'em' => '$this->simple',
'strong' => '$this->simple',
'code' => '$this->simple',
'samp' => '$this->simple',
'kbd' => '$this->simple',
'var' => '$this->simple',
'dfn' => '$this->simple',
'cite' => '$this->simple',
'small' => '$this->simple',
'big' => '$this->simple',
'blink' => '$this->simple'
);
//url裢接属性
var $attr_url;
//url正当性反省对象
var $urlcheck;
function ubbcode($attr_url){
$this->attr_url = ''.$attr_url;
$this->urlcheck = new urlcheck();
}
//对$str停止UBB编码解析
function parse($str){
$this->call_time++;
$parse = ''.htmlencode($str);
$ret = '';
while(true){
$eregi_ret=eregi("\[[#]{0,1}[[:alnum:]]{1,7}\]",$parse,$eregi_arr); //查找[xx]
if(!$eregi_ret){
$ret .= $parse;
break; //假如没有，前往
}
$pos = @strpos($parse,$eregi_arr[0]);
$tag_len=strlen($eregi_arr[0])-2;//标志长度
$tag_start=substr($eregi_arr[0],1,$tag_len);
$tag=strtolower($tag_start);
if((($tag=="url") or ($tag=="email") or ($tag=="img")) and ($this->call_time>1)){
echo $this->call_time."<br>";
return $parse;//假如不克不及是不克不及嵌套的标志，直接前往
}
$parse2 = substr($parse,0,$pos);//标志之前
$parse = substr($parse,$pos+$tag_len+2);//标志以后
if(!isset($this->tags[$tag])){
echo "$tag_start<br>";
$ret .= $parse2.'['.$tag_start.']';
continue;//假如是不撑持的标志
}
//查找对对应的停止标志
$eregi_ret=eregi("\[\/".$tag."\]",$parse,$eregi_arr);
if(!$eregi_ret){
$ret .= $parse2.'['.$tag_start.']';
continue;//假如没有对应当的停止标志
}
$pos=strpos($parse,$eregi_arr[0]);
$value=substr($parse,0,$pos);//这是起止标志之间的内容
$tag_end=substr($parse,$pos+2,$tag_len);
$parse=substr($parse,$pos+$tag_len+3);//停止标志以后的内容
if(($tag!="url") and ($tag!="email") and ($tag!="img")){
$value=$this->parse($value);
}
$ret .= $parse2;
eval('$ret .= '.$this->tags[$tag].'("'.$tag_start.'","'.$tag_end.'","'.$value.'");');
}
$this->call_time--;
return $ret;
}
function simple($start,$end,$value){
return '<'.$start.'>'.$value.'</'.$end.'>';
}
function url($start,$end,$value){
$trim_value=trim($value);
if (strtolower(substr($trim_value,0,7))!="http://")
$trim_value="http://".$trim_value;
if($this->urlcheck->check($trim_value)) return '<a href="'.$trim_value.'" '.$this->attr_url.'>'.$value.'</a>';
else return '['.$start.']'.$value.'[/'.$end.']';
}
function email($start,$end,$value){
if(emailcheck($value)) return '<a href="mailto:'.$value.'">'.$value.'</a>';
else return '['.$start.']'.$value.'[/'.$end.']';
}
function img($start,$end,$value){
$trim_value=trim($value);
if ((strtolower(substr($trim_value,0,7))!="http://") or ($this->urlcheck->check($trim_value)))
return '<img src="'.$trim_value.'"></img>';
else return '['.$start.']'.$value.'[/'.$end.']';
}
}
//测试
echo '<html>';
echo '<head><title>测试</title></head>';
echo '<body>';
echo '<form action="'.str2url($PATH_INFO).'" method="post">';
echo '<textarea cols="100" rows="10" name="ubb">'.htmlencode4textarea($ubb).'</textarea><br>';
echo '<input type="submit" value="转换">';
echo '</form>';
if(isset($ubb)){
$ubbcode = new ubbcode('target="_blank"');
echo '<hr>'.$ubbcode->parse($ubb);
}
echo '</body>';
echo '</html>';
?>
文件urlcheck.php的内容
<?php
//urlcheck.php
class urlcheck{
var $regex = array(//协定名(注重在这里必需写成小写) => 对应的正则表达式
'ftp' => '$this->ftpurl',
'file' => '$this->fileurl',
'http' => '$this->httpurl',
'https' => '$this->httpurl',
'gopher' => '$this->gopherurl',
'news' => '$this->newsurl',
'nntp' => '$this->nntpurl',
'telnet' => '$this->telneturl',
'wais' => '$this->waisurl'
);
var $lowalpha;
var $hialpha;
var $alpha;
var $digit;
var $safe;
var $extra;
var $national;
var $punctuation;
var $reserved;
var $hex;
var $escape;
var $unreserved;
var $uchar;
var $xchar;
var $digits;
var $urlpath;
var $password;
var $user;
var $port;
var $hostnumber;
var $alphadigit;
var $toplabel;
var $domainlabel;
var $hostname;
var $host;
var $hostport;
var $login;
//ftp
var $ftptype;
var $fsegment;
var $fpath;
var $ftpurl;
//file
var $fileurl;
//http,https
var $search;
var $hsegment;
var $hpath;
var $httpurl;
//gopher
var $gopher_string;
var $selector;
var $gtype;
var $gopherurl;
//news
var $article;
var $group;
var $grouppart;
var $newsurl;
//nntp
var $nntpurl;
//telnet
var $telneturl;
//wais
var $wpath;
var $wtype;
var $database;
var $waisdoc;
var $waisindex;
var $waisdatabase;
var $waisurl;
function check($url){
$pos = @strpos($url,':',1);
if($pos<1) return false;
$prot = substr($url,0,$pos);
if(!isset($this->regex[$prot])) return false;
eval('$regex = '.$this->regex[$prot].';');
return ereg('^'.$regex.'$',$url);
}
function urlcheck(){
$this->lowalpha = '[a-z]';
$this->hialpha = '[A-Z]';
$this->alpha = '('.$this->lowalpha.'|'.$this->hialpha.')';
$this->digit = '[0-9]';
$this->safe = '[$.+_-]';
$this->extra = '[*()\'!,]';
$this->national = '([{}|\^~`]|\\[|\\])';
$this->punctuation = '[<>#%"]';
$this->reserved = '[?;/:@&=]';
$this->hex = '('.$this->digit.'|[a-fA-F])';
$this->escape = '(%'.$this->hex.'{2})';
$this->unreserved = '('.$this->alpha.'|'.$this->digit.'|'.$this->safe.'|'.$this->extra.')';
$this->uchar = '('.$this->unreserved.'|'.$this->escape.')';
$this->xchar = '('.$this->unreserved.'|'.$this->reserved.'|'.$this->escape.')';
$this->digits = '('.$this->digit.'+)';
$this->urlpath = '('.$this->xchar.'*)';
$this->password = '(('.$this->uchar.'|[?;&=]'.')*)';
$this->user = '(('.$this->uchar.'|[?;&=]'.')*)';
$this->port = $this->digits;
$this->hostnumber = '('.$this->digits.'.'.$this->digits.'.'.$this->digits.'.'.$this->digits.')';
$this->alphadigit = '('.$this->alpha.'|'.$this->digit.')';
$this->toplabel = '('.$this->alpha.'|('.$this->alpha.'('.$this->alphadigit.'|-)*'.$this->alphadigit.'))';
$this->domainlabel = '('.$this->alphadigit.'|('.$this->alphadigit.'('.$this->alphadigit.'|-)*'.$this->alphadigit.'))';
$this->hostname = '(('.$this->domainlabel.'\\.)*'.$this->toplabel.')';
$this->host = '('.$this->hostname.'|'.$this->hostnumber.')';
$this->hostport = '('.$this->host.'(:'.$this->port.')?)';
$this->login = '(('.$this->user.'(:'.$this->password.')?@)?'.$this->hostport.')';
$this->ftptype = '[aidAID]';
$this->fsegment = '(('.$this->uchar.'|[?:@&=])*)';
$this->fpath = '('.$this->fsegment.'(/'.$this->fsegment.')*)';
$this->ftpurl = '([fF][tT][pP]://'.$this->login.'(/'.$this->fpath.'(;[tT][yY][pP][eE]='.$this->ftptype.')?)?)';
$this->fileurl = '([fF][iI][lL][eE]://('.$this->host.'|[lL][oO][cC][aA][lL][hH][oO][sS][tT])?/'.$this->fpath.')';
$this->search = '(('.$this->uchar.'|[;:@&=])*)';
$this->hsegment = '(('.$this->uchar.'|[;:@&=])*)';
$this->hpath = '('.$this->hsegment.'(/'.$this->hsegment.')*)';
$this->httpurl = '([hH][tT][tT][pP][sS]?://'.$this->hostport.'(/'.$this->hpath.'([?]'.$this->search.')?)?)';
$this->gopher_string = '('.$this->xchar.'*)';
$this->selector = '('.$this->xchar.'*)';
$this->gtype = $this->xchar;
$this->gopherurl = '([gG][oO][pP][hH][eE][rR]://'.$this->hostport.'(/('.$this->gtype.'('.$this->selector.'(%09'.$this->search.'(%09'.$this->gopher_string.')?)?)?)?)?)';
$this->article = '(('.$this->uchar.'|[;/?:&=])+@'.$this->host.')';
$this->group = '('.$this->alpha.'('.$this->alpha.'|'.$this->digit.'|[-.+_])*)';
$this->grouppart = '(
|'.$this->group.'|'.$this->article.')';
$this->newsurl = '([nN][eE][wW][sS]:'.$this->grouppart.')';
$this->nntpurl = '([nN][nN][tT][pP]://'.$this->hostport.'/'.$this->group.'(/'.$this->digits.')?)';
$this->telneturl = '([tT][eE][lL][nN][eE][tT]://'.$this->login.'/?)';
$this->wpath = '('.$this->uchar.'*)';
$this->wtype = '('.$this->uchar.'*)';
$this->database = '('.$this->uchar.'*)';
$this->waisdoc = '([wW][aA][iI][sS]://'.$this->hostport.'/'.$this->database.'/'.$this->wtype.'/'.$this->wpath.')';
$this->waisindex = '([wW][aA][iI][sS]://'.$this->hostport.'/'.$this->database.'[?]'.$this->search.')';
$this->waisdatabase = '([wW][aA][iI][sS]://'.$this->hostport.'/'.$this->database.')';
$this->waisurl = '('.$this->waisdatabase.'|'.$this->waisindex.'|'.$this->waisdoc.')';
}
}
?>
文件otherfunc.php的内容
<?php
//otherfunc.php
function htmlencode($str){
$str = (string)$str;
$ret = '';
$len = strlen($str);
$nl = false;
for($i=0;$i<$len;$i++){
$chr = $str[$i];
switch($chr){
case '<':
$ret .= '<';
$nl = false;
break;
case '>':
$ret .= '>';
$nl = false;
break;
case '"':
$ret .= '"';
$nl = false;
break;
case '&':
$ret .= '&';
$nl = false;
break;
/*
case ' ':
$ret .= ' ';
$nl = false;
break;
*/
case chr(9):
$ret .= ' ';
$nl = false;
break;
case chr(10):
if($nl) $nl = false;
else{
$ret .= '<br>';
$nl = true;
}
break;
case chr(13):
if($nl) $nl = false;
else{
$ret .= '<br>';
$nl = true;
}
break;
default:
$ret .= $chr;
$nl = false;
break;
}
}
return $ret;
}
function htmlencode4textarea($str){
$str = (string)$str;
$ret = '';
$len = strlen($str);
for($i=0;$i<$len;$i++){
$chr = $str[$i];
switch($chr){
case '<':
$ret .= '<';
break;
case '>':
$ret .= '>';
break;
case '"':
$ret .= '"';
break;
case '&':
$ret .= '&';
break;
case ' ':
$ret .= ' ';
break;
case chr(9):
$ret .= ' ';
break;
default:
$ret .= $chr;
break;
}
}
return $ret;
}
function emailcheck($email){
$ret=false;
if(strstr($email, '@') && strstr($email, '.')){
if(eregi("^([_a-z0-9]+([\\._a-z0-9-]+)*)@([a-z0-9]{2,}(\\.[a-z0-9-]{2,})*\\.[a-z]{2,3})$", $email)){
$ret=true;
}
}
return $ret;
}
function str2url($path){
return eregi_replace("%2f","/",urlencode($path));
}
?> 在学习中，我也一直这样要求着自己。 |
|
|Archiver|手机版|仓酷云
鄂ICP备14007578号-2
发表于 2015-2-4 00:25:37
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