Reads to EOF on the given file pointer from the current position and writes the results to the output buffer.
You may need to call rewind() to reset the file pointer to the beginning of the file if you have already written data to the file.
If you just want to dump the contents of a file to the output buffer, without first modifying it or seeking to a particular offset, you may want to use the readfile(), which saves you the fopen() call.
// open the file in a binary mode
$name = './img/ok.png';
$fp = fopen($name, 'rb');
// send the right headers
header("Content-Length: " . filesize($name));
// dump the picture and stop the script
You are encouraged to use the
b flag when dealing
with binary files, even if your system does not require it, so that
your scripts will be more portable.