求助：如何将图片上传到数据库？

<table  border="0" align="center" cellpadding="0" >
<form name="form1" method="post" action="tptj_ok.php" enctype="multipart/form-data">
<tr>
<td height="46"  clospan="2" align="right"><br></td>
</tr>
<tr>
  <td  align="right">图片名称：</td>
  <td><input type="text" name="tpmc" id="tpmc" size="25"></td>
</tr>
<tr>
  <td  align="right">上传路径：</td>
  <td><input name="file" type="file" size="25"></td>
</tr>
<tr>
  <td></td>
  <td align="center"><input name="sc" type="submit" id="sc" value="上传"> <input name="qx" type="reset" value="取消" id="qx"></td>
</tr>
</form>
</table>

//以下是tptj_ok.php
<?php
include("conn/conn.php");
if($_POST['sc']<>""){
$tpmc=$_POST['tpmc'];
$tpmc=htmlspecialchars($tpmc);
$tpmc=str_replace("\n","<br>",$tpmc);
$tpmc=str_replace(""," ",$tpmc);
$scsj=date("y-m-d");
$file = $_POST['file'];
$fp=fopen($file,"r");
echo $tpmc;
echo $scsj;
echo $file;
$file=fread($fp,filesize($file));
$query="insert into tb_tpsc(tpmc,file,scsj) values('$tpmc','$file','$scsj')";
$result=mysql_query($query);
//echo "<meta http-equiv=\"refresh\" content=\"1;url="i.php\">图片上传成功，请稍等……";
}
?>
运行时显示：Warning: fread(): supplied argument is not a valid stream resource in F:\studyphp\0\tptj_ok.php on line 14

请问我该如何做？
谢谢！

这里有一个例子,或者可以参考下

http://www.phpfans.net/bbs/viewthread.php?tid=110

文件上传方面要看看 $_FILE 数组.

问题终于解决了！谢谢心若水寒！