Description:
------------
It would be nice when the description tells:
"Fread reads FROM THE CURRENT POSITION OF THE POINTER for length of 
bytes."

Reproduce code:
---------------
<?php
$datei = 'test.txt';
$dh = fopen ($datei,"w");
fwrite($dh, '123');
fclose($dh);
$dh = fopen ($datei,"r");
echo 'content: '.fread($dh, filesize($datei)).'<br>';
// rewind($dh);
echo 'content: '.fread($dh, filesize($datei));
fclose($dh);
?>

Expected result:
----------------
content: 123
content: 123

Actual result:
--------------
content: 123
content: