Cannot copy image file using fread and fwrite

Please tell what is wrong with following code:

<?php
if (($rh = fopen('image.jpg', 'rb')) === FALSE)
echo "Cannot open image.jpg";
if (($wh = fopen('hi.jpg', 'wb')) === FALSE)
echo "Cannot open hi.jpg";

if (fwrite($wh,fread($rh, filesize('image.jpg'))) == FALSE)
{
echo "unable to write to file";
exit;
}

fclose($rh);
fclose($wh);
?>

When I run the above code ,it creates a file hi.jpg whose size is same as image.jpg but when I try to open hi.jpg, it gives the following error:

Error interpreting JPEG image file (Not a JPEG file: starts with 0x47 0x49)

What can be the problem?? Please don't say to use copy() as I cannot do that. I have to copy image file using fread() and fwrite() only.

Thanks a lot...

 

@Shabbir
I have already opened the files in binary mode. See the first two if statements

 

@Shabbir

Surprisingly the same code with same image is working on my friend's system having same operating system.. How it is possible?? What can be the possible cause??

 

Hey try this I didn't test it since I don't have files named like those but this one should work.

PHP:

<?php
$imgs = array('image.jpg','hi.jpg','image2.jpg','hi2.jpg');

if ($rh = fopen($imgs[0], 'rb') == false)
{
echo "Cannot open " . $imgs[0];    
}
else
{
    echo "image " . $imgs[0] . " has been read.";
}
 
if ($wh = fopen($imgs[1], 'wb') == false)
{
    echo "Cannot open " . $imgs[1];
}
else
{
    echo "image " . $imgs[1] . " has been read.";
}

$i;
$imgCount = count($imgs);

 for($i == 2; $i < $imgCount; $i++)
 {
     touch($imgs[$i]);//make new blank images for read and write;
 }
 
 if(!file_exists($imgs[2]) && !file_exists($imgs[3])) // check if files were created
 {
     echo "Blank Copies were not made of the originals";
 }
 else // blanks were made lets get to work on writing the data to them
 {
    
    $copiedImgDat = fopen($imgs[2], 'rb');
    $copiedImgDat2 = fopen($imgs[3], 'wb');
    
    $writeCopyDat = fwrite($copiedImgDat,$rh);
    $writeCopyDat2 = fwrite($copiedImgDat2,$wh);
        
 }

if ($writeCopyDat == fale)
{
echo "unable to write to " . $imgs[2]; 
}
else
{
    echo $imgs[0] . " has been copied and is named " . $imgs[2];
}
if($writeCopyDat2 == fale)
{
    echo "unable to write to " . $imgs[3];
}
else
{
    echo $imgs[1] . " has been copied and is named " . $imgs[3];
}

fclose($rh);
fclose($wh);
fclose($copiedImgDat);
fclose($copiedImgDat2);

$j;

// echo them out to see if they copied properly
for($j == 0; $j < $imgCount; $j++)
{
echo "<img src=\"$mgs[$j]\" title=\"$imgs[$j]\" />";
}
?>