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Date: Sat, 27 Jul 2013 17:34:23 +0200
From: Luuk <luuk@invalid.lan>
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Subject: Re: is mysqli_real_escape_string bullet proof with binary data?
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Even if i add the following function:
function fwrite_stream($fp, $string) {
     for ($written = 0; $written < strlen($string); $written += $fwrite) {
         $fwrite = fwrite($fp, substr($string, $written));
         if ($fwrite === false) {
             return $written;
         }
     }
     return $written;
}

and at the end of my code:
$fp = fopen('NewUpArrow.png','wb');
fwrite_stream($fp, $file);


Then i can see that i created a copy of the original file:
luuk@opensuse:~> diff -s upArrow.png NewUpArrow.png
Files upArrow.png and NewUpArrow.png are identical