PHP read the picture, read the bytes more than the actual bytes of the picture, carefully read the PHP manual self-think the code is not related to the problem

PHP read the picture, read the bytes more than the actual bytes of the picture, read carefully the PHP manual self-Thinking code is no problem
My code is as follows:

 
 
  $filepath = "C:\123.jpg";
  $filesize =filesize ($filepath);
  $fs =fopen ($filepath, "R");
  $readlen =1024;//How many bytes per read
  How many bytes are read $rlen =0;//
  while (!feof ($FS)) {
    $data =fread ($fs, $readlen);
    $rlen + = $readlen;
   }
   Fclose ($FS);
   echo ' File Size '. $filesize. '
';
   echo ' read size '. $rlen. '
';
?>

PHP friends to see, My Computer system Windows 7, which should not be related to the system.
------Solution--------------------
This is exactly the system!
Window's file opening method has the difference between the text way and the binary way
In text mode, a \ r is attached to each \ n (not \ r \ n combination), forming \ r \ n
So the number of bytes is more.

You need to use binary to prevent images from being opened
$fs =fopen ($filepath, "R b");

or directly with file_get_contents.

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