Question

php难题（添加表情）

如何用php做一个留言板可添加表情，
能给我一段代码吗，尤其js部分
像php100这样

Answer 1

<?php
function get_ubb($str) {

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

if($_POST['sub']){
echo get_ubb($_POST[message]);
}

?>
<script>
function inserttag(topen,tclose){
var themess = document.getElementById('con');//编辑对象
themess.focus();
if (document.selection) {//如果是否ie浏览器
var theSelection = document.selection.createRange().text;//获取选区文字
//alert(theSelection);
if(theSelection){
document.selection.createRange().text = theSelection = topen+theSelection+tclose;//替换
}else{
document.selection.createRange().text = topen+tclose;
}
theSelection='';

}else{//其他浏览器

var scrollPos = themess.scrollTop;
var selLength = themess.textLength;
var selStart = themess.selectionStart;//选区起始点索引，未选择为0
var selEnd = themess.selectionEnd;//选区终点点索引
if (selEnd <= 2)
selEnd = selLength;

var s1 = (themess.value).substring(0,selStart);//截取起始点前部分字符
var s2 = (themess.value).substring(selStart, selEnd)//截取选择部分字符
var s3 = (themess.value).substring(selEnd, selLength);//截取终点后部分字符

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

themess.focus();
themess.selectionStart = newStart;
themess.selectionEnd = newStart;
themess.scrollTop = scrollPos;
return;
}
}
</script>
<hr/>
<font size=2>
<img src="em/0.gif" onclick='inserttag("[em0","]");' />
<img src="em/1.gif" onclick='inserttag("[em1","]");' />
<img src="em/2.gif" onclick='inserttag("[em2","]");' />
<img src="em/3.gif" onclick='inserttag("[em3","]");' />
<img src="em/4.gif" onclick='inserttag("[em4","]");' />
<img src="em/5.gif" onclick='inserttag("[em5","]");' />
<img src="em/6.gif" onclick='inserttag("[em6","]");' />
<img src="em/7.gif" onclick='inserttag("[em7","]");' />
<img src="em/8.gif" onclick='inserttag("[em8","]");' />
<img src="em/9.gif" onclick='inserttag("[em9","]");' />
<form action="" method="post">
<textarea name="message" id="con" cols="70%" rows="10"></textarea><br>
<input type="submit" name="sub" value="提交"/>

</form>

表情放在em文件夹下面

QQ：706561147

Answer 2

这个是html编辑器。这个和php没多大关系。你想要搜索一下html编辑器就行了，世界有名的就是 fckeditor，ckeditor等等，国产的有kindeditor等等，很多的。
我推荐用kindeditor因为国产的适合中国人的习惯，而且是免费的。外国的要钱，不给钱也能用但是不能当留言使用。