<?php

function get_ubb($str) {

//$str = preg_replace("/(/[)em(.*?)(/])/i", "<img src=/"ubb///2.gif/" />", $str);

//表情UBB U禁止貪婪匹配，只跟蹤到最近的一個匹配符并結束。

$str = preg_replace("//[em_(.*)/]/iU","<img src=/"ubb///1.gif/" />",$str);

//加粗UBB

$str = preg_replace("//[b/](.*)/[//b/]/i","<b>//1</b>",$str);

//鏈接UBB

$str = preg_replace("/(/[url/])(.*)(/[//url/])/i", "<a href=//2 target=/"new/">//2</a>", $str);

//QQ號碼UBB

$str = preg_replace("//[qq/]([0-9]*)/[//qq/]/i", "<a target=/"_blank/" href=/"tencent://message/?uin=/${1}&amp;site=www.php100.com&amp;menu=yes/"><img src=/"http://wpa.qq.com/pa?p=1:/${1}:8/" alt=/"QQ/${1}/" height=/"16/" border=/"0/" align=/"top/" /></a>", $str);

return $str;

}

if($_POST['sub']){

echo get_ubb($_POST[message]);

}

?>

<script>

function inserttag(topen,tclose){

var themess = document.getElementByIdx_x('con');//編輯對象

themess.focus();

if (document.selection) {//如果是否ie瀏覽器

var theSelection = document.selection.createRange().text;//獲取選區文字

//alert(theSelection);

if(theSelection){

document.selection.createRange().text = theSelection = topen+theSelection+tclose;//替換

}else{

document.selection.createRange().text = topen+tclose;
}

theSelection='';

}else{//其他瀏覽器

var scrollPos = themess.scrollTop;

var selLength = themess.textLength;

var selStart = themess.selectionStart;//選區起始點索引，未選擇為0

var selEnd = themess.selectionEnd;//選區終點點索引

if (selEnd <= 2)

selEnd = selLength;

var s1 = (themess.value).substring(0,selStart);//截取起始點前部分字符

var s2 = (themess.value).substring(selStart, selEnd)//截取選擇部分字符

var s3 = (themess.value).substring(selEnd, selLength);//截取終點后部分字符

themess.value = s1 + topen + s2 + tclose + s3;//替換

themess.focus();

themess.selectionStart = newStart;

themess.selectionEnd = newStart;

themess.scrollTop = scrollPos;

return;

}

}

</script>

<hr/>

<font size=2>

<img src="ubb/bizui.gif" onclick='inserttag("[em_bizui","]");' />

<img src="ubb/chiya.gif" onclick='inserttag("[em_chiya","]");' />

<img src="ubb/diaopi.gif" onclick='inserttag("[em_diaopi","]");' />

<img src="ubb/ku.gif" onclick='inserttag("[em_ku","]");' />

<img src="ubb/liuhan.gif" onclick='inserttag("[em_liuhan","]");' />

<img src="ubb/liulei.gif" onclick='inserttag("[em_liulei","]");' />

<img src="ubb/se.gif" onclick='inserttag("[em_se","]");' />

<img src="ubb/touxiao.gif" onclick='inserttag("[em_touxiao","]");' />

<img src="ubb/weixiao.gif" onclick='inserttag("[em_weixiao","]");' />

<img src="ubb/yun.gif" onclick='inserttag("[em_yun","]");' />
<a href="javascript：void(0);" onclick='inserttag("[b]","[/b]");'>加粗</a>

<a href="javascript：void(0);" onclick='inserttag("[qq]","[/qq]");'>QQ號</a>

<a href="javascript：void(0);" onclick='inserttag("[url]","[/url]");'>超鏈接</a>

<br>

<form action="" method="post">

<textarea name="message" id="con" cols="70%" rows="10"></textarea>

<input type="submit" name="sub" value="提交"/>

</form>

圖片所在的位置

ubb文件夾下面