thinkphp打开验证码_thinkphp打开验证码页面是乱码

 代码如下

if (isset($_GET["dir"])){ //设置文件目录
$basedir=$_GET["dir"];
}else{
$basedir = ".";
}
$auto = 1;
checkdir($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 ".checkBOM("$basedir/$file")."
";
    }else{
     $dirname = $basedir."/".$file;
     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);
   rewrite ($filename, $rest);
   return ("BOM found, automatically removed.");
  } else {
   return ("BOM found.");
  }
}
else return ("BOM Not Found.");
}
function rewrite ($filename, $data) {
$filenum = fopen($filename, "w");
flock($filenum, LOCK_EX);
fwrite($filenum, $data);
fclose($filenum);
}
?>

thinkphp打开验证码_thinkphp打开验证码页面是乱码

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