PHP terminal application with a i/o fuctionality

db_info.php

<?php
echo "Welcome to the OZ-TZ init script \n";

$f_db_host = fopen ("php://stdin","r");
$f_db_dbname = fopen ("php://stdin","r");
$f_db_username = fopen ("php://stdin","r");
$f_db_userpassword = fopen ("php://stdin","r");

echo "Type DB host: ";
$db_host = fgets($f_db_host);

echo "\n";
echo "Type DB name: ";
$db_dbname = fgets($f_db_dbname);

echo "\n";
echo "Type DB user name: ";
$db_username = fgets($f_db_username);

echo "\n";
echo "Type DB user password: ";
$db_userpassword = fgets($f_db_userpassword);

echo "\n";