php表情

<script>
function inserttag(topen,tclose){
 var themess = document.getElementById('con');//编辑对象
 //a = document.getElementById('con').value;
 //alert(a);
 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>
<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","]");' />
<img src="em/10.gif" onclick='inserttag("[em10","]");' />
<img src="em/11.gif" onclick='inserttag("[em11","]");' />
<img src="em/12.gif" onclick='inserttag("[em12","]");' />
<img src="em/13.gif" onclick='inserttag("[em13","]");' />
<form action="biaoqing2.php" method="post">
<textarea name="message" id="con" cols="70%" rows="10"></textarea><br>
<input type="submit" name="sub" value="提交"/>
</form>
                  

 

 

 

 

<?php
//插入
 //echo $_POST["message"];
 $link = mysql_connect('localhost','root','123') or die("连接错误!");
 mysql_select_db('mvc-xm',$link) or die("不能选择数据库！");
 $q = "insert into biaoqing (img) values('".$_POST["message"]."')";
 mysql_query($q);
 //读出
 $row="select * from biaoqing where img='".$_POST["message"]."'";
$result= mysql_query($row);
$row=mysql_fetch_assoc($result);

/*
$rows=array();
while($row=mysql_fetch_assoc($result)){
    $rows[]=$row; 
    
    var_dump($rows);
    }
echo $rows[0]["img"]; */
  $a=$row["img"];
//截取读出的让其格式成为图片 
function get_ubb($str) {
   $str = preg_replace("/(\[)em(.*?)(\])/i", "<img src=\"em/\\2.gif\" />", $str);     return $str;
   }
  
   echo get_ubb($a);
  
 
?>