Warning: fread(): supplied argument is not a valid stream resource

Hi

Iam new to PHP,while uploading the large pdf files im getting the following 2 warnings:

Warning: fread(): supplied argument is not a valid stream resource

Warning: fclose(): supplied argument is not a valid stream resource

the folllowing is the code:

<?php ob_start(); ?>
<?php
function login()
{ global $err;
include("head.php");
?>


<tr><td> <table border="0" cellpadding="0" cellspacing="0" height="150" width="200" align="center">
<tr>
<td height="20" align="center" bgcolor="#ffffff">
<font color="#000000">Admin Login</font>
</td>
</tr>
<tr>
<td valign="top">
<form action="" method="post"><br>
<table border="0" cellpadding="3" cellspacing="0" align="center">
<tr>
<td width="64">
<b>Username:</b></td>
<td width="134"><input type="text" name="aname" value="<?php echo $name;?>" /></td>
</tr>
<tr>
<td>
<b>Password:</b></td>
<td>
<input type="password" name="apass" value="<?php echo $pass;?>"></td>
</tr>
<tr>
<td colspan="2">
<center><input type="hidden" name="maa" value="do_login"><input type="submit" name="submit" value="Submit"></center></td>
</tr>
</table>
</form>

</td></tr>
</table> </td></tr>
<tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td><?php echo $err; ?></td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr>
<?php footer(); }

function do_login()
{

global $err;
$name="admin";
$pass="admin";
$adn=$_REQUEST['aname'];
$adp=$_REQUEST['apass'];
if(($name==$adn)&&($pass==$adp))
{
admin();
}
else
{
$err="<font color=\"#CC0033\"><div align=\"center\" class=\"style9\"><b>LOGIN_ERROR</b></div></font>";
login();
}

}

function admin()
{
include("head1.php"); ?>
<tr><td align="center"><b><a href="index.php?maa=upload">Fileupload </a></b></td>></b></td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr>

<? footer(); }
function upload()
{
include("head1.php");
echo "<title>Upload File To MySQL Database</title>";

echo "<tr><td>";
if(isset($_POST['upload']))
{
$fileName = $_FILES['userfile']['name'];
$tmpName = $_FILES['userfile']['tmp_name'];
$fileSize = $_FILES['userfile']['size'];
$fileType = $_FILES['userfile']['type'];

$fp = fopen($tmpName, 'r');
$content = fread($fp, $fileSize);
$content = addslashes($content);

fclose($fp);

if(!get_magic_quotes_gpc())
{
$fileName = addslashes($fileName);
}


$con=mysql_connect("localhost","root","");
mysql_select_db("a2z");
$str_sql = "SELECT id,name,type,size,content FROM upload";
$result = mysql_query($str_sql) or die(mysql_error());

$query = "INSERT INTO upload (name, size, type, content ) ".
"VALUES ('$fileName', '$fileSize', '$fileType', '$content')";

mysql_query($query) or die('Error, query failed');
mysql_close($con);

echo "<tr><td><br>File $fileName uploaded<br></td></tr>";
} ?>


<tr><td>&nbsp;</td></tr>
<tr><td>
<form action="" method="post" enctype="multipart/form-data" name="uploadform">
<table width="350" border="0" cellpadding="1" cellspacing="1" class="box">
<tr>
<td width="246"><input type="hidden" name="MAX_FILE_SIZE" value="200000000"><input name="userfile" type="file" class="box" id="userfile">
</td>
<td width="80"><input name="upload" type="submit" class="box" id="upload" value=" Upload "></td>
</tr>
</table>
</form> </td></tr>

<tr><td><a href="index.php?maa=download">Click here to check the uploaded files</a></td></tr>
<tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr>


<? footer(); }

function download()
{
//footer();
include("head1.php");
if(isset($_GET['id']))
{

$con=mysql_connect("localhost","root","");
mysql_select_db("a2z");

$id = $_GET['id'];
$query = "SELECT name, type, size, content FROM upload WHERE id = '$id'";
$result = mysql_query($query) or die('Error, query failed');
list($name, $type, $size, $content) = mysql_fetch_array($result);


header("Content-Disposition: attachment; filename=$name");
header("Content-length: $size");
header("Content-type: $type");
echo $content;
mysql_close($con);

exit;
}
$con=mysql_connect("localhost","root","");
mysql_select_db("a2z");
$query = "SELECT id, name FROM upload";
$result = mysql_query($query) or die('Error, query failed');
if(mysql_num_rows($result) == 0)
{
echo "Database is empty ";
}
else
{
while(list($id, $name) = mysql_fetch_array($result))
{

echo "<tr><td><a href=\"index.php?maa=download&id=$id\">$id&nbsp;&nbsp;$name</a><br></td></tr>";

}

footer();
}
mysql_close($con);
}

function logout()
{
include("head.php");
?>
<form name="form1" method="post" action="">
<tr bgcolor="#FFFFFF">
<td colspan="2"><div align="center"><font color="#2A3F55" size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong>LOG OUT </strong></font></div></td>
</tr>
<tr>
<td><div align="center">Are you sure you want to log out ?<br><br>
<input type="submit" name="submit" value="Yes">&nbsp;</div></td>
</tr>
<tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr><tr><td>&nbsp;</td></tr>

</form>
<?php
if(isset($_REQUEST['submit']))
{
header("Location: index.php");
}
footer();
}





$opt=$_REQUEST['maa'];
switch($opt)
{

case "do_login":
do_login();
break;

case "upload":
upload();
break;
case "download" :
download();
break;

case "logout" :
logout();
break;

default:
login();
break;

}






function footer()
{ ?>

</table>
</td>
</tr>


<tr>
<td height="63" valign="top" background="../chrometheme/bg.jpg">




</td>
</tr>
<tr>
<td>&nbsp;</td>
</tr>

</table>

<body>
</body>
</html>
<?php } ?>
<?php ob_end_flush(); ?>

Any one know the solution,please reply.

Funny how you already posted this question and I already answered it.

i used the ob_start(); and ob_end_flush(); in my code,but if i tried to upload large pdf files like 7MB it will give an error,so what to do for that.

You didn't say what your specific error was...