php在线编辑本地文件方法共享

public function testfile()
{
$cfile='F:\phpStudy\WWW\thinkphp5practise\NNWinLoseConfig.ini';
$cfilehandle=fopen($cfile,"r");
$editfile=fread($cfilehandle,filesize($cfile));
$encoding = mb_detect_encoding($editfile, array('GB2312','GBK','UTF-16','UCS-2','UTF-8','BIG5','ASCII'));
$editfile = iconv($encoding, 'UTF-8', $editfile);
fclose($cfilehandle);
echo "<form action='/index/index/testfiledo' method=post>";
echo "<textarea cols=60 rows=15 name=copy id=code>";
echo $editfile;
echo "</textarea>";
echo "<p><input type=submit value='submit' name=edit><input type=reset value='reset'></form>";
} public function testfiledo()
{
$cfile='F:\phpStudy\WWW\thinkphp5practise\NNWinLoseConfig.ini';
$copy=$_POST['copy'];
$cfilehandle=fopen($cfile,"wb");
flock($cfilehandle, 2);
fputs($cfilehandle,stripslashes(str_replace("/x0d/x0a", "/x0a", $copy)));
fclose($cfilehandle);
echo "修改成功了！";
echo "<a href='/Admin/Config/changefile'>查看</a>;
}