Create configuration files and write your own BLOG system using PHP 2_PHP tutorial

/*
FILE:install.php
Author:www.5dkx.com
DATE:2010-3-29
DONE: Install configuration file
*/
if($_POST[mysubmit])
{
$host = $_POST[hostname];
$user = $_POST[user];
$passwd = $_POST[passwd];
$dbname = $_POST[dbname];
$siteurl = "http://".$_POST[siteurl];
$sitekeyword = $_POST[sitekeyword];
$sitedescription = $_POST[sitedescription];
$sitename = $_POST[sitename];
if(!file_exists("install_locak.txt"))
{
$fp = fopen( "./include/config.func.php","w+");
if(flock($fp,LOCK_EX))
{
fwrite($fp,"<"."?phprn ");
fwrite($fp,"$host="$host";rn");
fwrite($fp,"$user="$user";rn");
fwrite( $fp,"$passwd="$passwd";rn");
fwrite($fp,"$dbname="$dbname";rn");
fwrite($fp,"$sitename=" $sitename";rn");
fwrite($fp,"$siteurl="$siteurl";rn");
fwrite($fp,"$sitekeyword="$sitekeyword";rn");
fwrite($fp,"$sitedescription="$sitedescription";rn");
$tmp = "$conn = mysql_connect($host,$user,$passwd)or die(mysql_error()); rn";
fwrite($fp,$tmp);
$tmp ="mysql_query("set names 'gbk'")or die("Failed to set character library!");rn";
fwrite($fp,$tmp);
$tmp ="mysql_select_db($dbname,$conn)or die("Failed to connect to database!");rn";
fwrite($fp,$tmp);
fwrite($fp,"?>rn");
flock($fp,LOCK_UN);
echo "File configuration successful!
";
echo "";


}
else
{
echo "can 't lock the file!
";
}
fclose($fp);
$fins = fopen("install_lock.txt","w");
fclose($ fins);
}
else
{
echo "install_locak.txt already exists, please delete this file if you want to reinstall!
";
}
}
?>