No image display with BOM utf8 about captcha

[tannerjcox]

@tienhsu, what did you do to fix this?

[Zhenjas]

I have same problem, please tell how to fix this problem?

[stevejobsii]

@tienhsu how can you fix this problem thanks!

[stevejobsii]

@Zhenjas can you fix this promblem right now?

[tienhsu]

@tannerjcox @stevejobsii @Zhenjas found the php file in window is format utf8 with bom, just remove BOM format.

[tienhsu]

you can remove BOM with the following code:

public function CheckBomFile()
{
global $auto;
set_time_limit(1000);
if (isset($_GET['dir'])) { //Set the scan Directory
$basedir = $_GET['dir'];
} else {
$basedir = './../app/';
}
$auto = 1;
self::checkdir($basedir);
}
function checkdir($basedir)
{
if ($dh = opendir($basedir)) {
while (($file = readdir($dh)) !== false) {
if ($file != '.' && $file != '..') {
if (!is_dir($basedir . "/" . $file)) {
echo "filename: $basedir/$file " . self::checkBOM("$basedir/$file") . "
";
} else {
$dirname = $basedir . "/" . $file;
self::checkdir($dirname);
}
}
}
closedir($dh);
}
}
function checkBOM($filename)
{
global $auto;
$contents = file_get_contents($filename);
$charset[1] = substr($contents, 0, 1);
$charset[2] = substr($contents, 1, 1);
$charset[3] = substr($contents, 2, 1);
if (ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191) {
if ($auto == 1) {
$rest = substr($contents, 3);
self::rewrite($filename, $rest);
return ("<font color="red">BOM found, automatically removed.");
} else {
return ("<font color="red">BOM found.");
}
} else
return ("BOM Not Found.");
}
function rewrite($filename, $data)
{
$filenum = fopen($filename, "w");
flock($filenum, LOCK_EX);
fwrite($filenum, $data);
fclose($filenum);
}